Microwave Digestion System Method Note Compendiumcem.com/media/contenttype/media/literature/MetNote_MARS6_Com… · Compendium Updated February 1, 2019. Agriculture Alfalfa2 Boric

MARS™ 6Microwave Digestion System

Method Note Compendium

Updated February 1, 2019

Agriculture

Alfalfa 2

Boric Acid HF Neutralization 3

Cannabis (Plant) 4

Coffee Beans 5

Cotton 6

Feed Grain 7

Fertilizer - AOAC Method 2017.02 8

Fertilizer -AOAC Method 2006.03 9

Geraniums 10

Impatiens 11

Leather 12

Palm Leaves 13

Plant Tissue 14

Soybean 15

Soybean Meal 16

Spinach Leaves 17

Straw 18

Tea Extract 19

Tea Tannin 20

Tobacco 21

Wheat 22

Wood Pulp 23

Wool 24

Yeast 25

Clinical and Biological

Animal Tissue (Dry) 27

Animal Tissue (Wet) 28

Beef Bone 29

Blood - Human 30

Bovine Blood 32

Bovine Liver (Wet) 33

Brain Tissue (Dog) 34

Dog Feces 35

Fingernails 36

Hair 37

Lobster Hepatopancreas (Tort-CRM) 39

Rat Kidney 40

Urine – Human 41

Consumer Products


Candle Fragrance 44

Cosmetics (Make-Up) Liquid 45

Cotton 46

Deodorant (Powder) 47

Eye Shadow 48

Foam (Mattress) 49

Shampoo (Dandruff) 50

Suppository (Capsule) 51

Toothpaste 52

Vaseline 53

Wax (Candle) 54

Environmental and Regulatory


Fertilizer - AOAC Method 2017.02 57

Fertilizer -AOAC Method 2006.03 58

Fly Ash 59

Limestone 61

NPDES (Waste Water) 62

Contents

Pine Needles 63

RoHS (For Pb, Hg, and Cd Analysis) 64

Sediment (BCCS - 1 CRM) (Leach) 65

Sediment (Buffalo River) (Leach) 66

Sludge (Industrial) 67

Soil (Montana - CRM) (Leach) 68

TCLP Extract 69

US EPA 3015 (Aqueous Samples) 70

US EPA 3015a (Aqueous Sample) 71

US EPA 3051 (Solid Sample) 72

US EPA 3051a (Solid Sample) 73

US EPA 3052 74

USP 232/233 (Pharmaceuticals) 75

Waste Activated Sludge 76

Water (For Analysis of Phosphorous) 77

Wood 78

Food Testing

Alum 80

Apple 81

Asparagus 82

Bacon (Cooked Pieces) 83

Beef (Ground) 84

Beef Bouillon 85

Beer (Light) 86

Blueberry 87

Broccoli 88

Caramel Color 89

Carrot 90

Celery 91

Chai Tea 92

Cheese - Processed 93

Cheese Cracker 94

Cheese Powder 95

Cherry 96

Chewing Gum 97

Chicken (Boneless) 98

Chili Candy (Mexican) 99

Chili Powder 100

Chips (Potato) 101

Citrus Leaves 102

Clam Puree 103

Cocoa 104

Coconut 105

Coffee (Beans) 106

Coffee Beans 107

Cucumber 108

Dog Food (Dry) 109

Dog Food (Wet) 110

Fish Tissue 111

Flounder 112

Flour 113

Food 114

Food Coloring (Liquid) 115

Fruit Juice 116

Gelatin 117

Granola Bar 118

Grape 119

Grapefruit 120

Gummy Bear 121

Ham 122

Infant Cereal (Rice Grain) 123

Infant Formula (Liquid) 124


Infant Formula (Powder) 126


Kidney Bean 128

Kielbasa Sausage 129

Maple Syrup 130

Mayonnaise 131

Meal Replacement Shake (Chocolate) 132

Milk (Liquid) Whole 133

Milk Powder 134

Nutritional Drink (Adult) 135

Olive Oil 136

Orange Juice 137

Oyster Puree 138

Peanut Butter 139

Pear 140

Pepper (Bell, Chili, Etc.) 141

Pistachio Nuts 142

Pizza (Frozen, Pepperoni) 143

Plum 144

Pork (Ground) 145

Potato 146

Potato Chips 147

Pretzel (Salted) 148

Protein Bar 149

Raspberry 150

Rice 151

Safflower Oil 152

Salad Dressing (Ranch) 153

Salami 154

Sausage 155

Soda (Diet) 156

Sodium Free - Seasoning 157

Soybean 158

Spinach 159

Spinach Leaves 160

Spinach Pasta 161

Strawberry 162

Sugar (Granulated) 163

Tea Leaves 164

Tomato Leaves 165

Tomato Pasta (70% Moisture) 166

Tomato Soup 167

Walnut 168

Watermelon 169

Wheat Crackers 170

Whey 171

Whey Powder 172

Wine 173

Yogurt (Plain) 174

Geoscience and Mining

Alpha - Alumina 176

Alumina Beads (w/Silver Substrate) 177

Alumina Powder 179

Aluminum Nitride 180

Aluminum Oxide 181

Aluminum Oxide (Powder) 182

Asbestos 183

Automotive Catalyst 184

Barium Titanate (BaTiO3) 181

Bastnaesite Ore 186

Bauxite 188

Boiler Scale (80-90% Fe) 190


Boron Carbide (B4C) 192

Carbon 193

Cement 194

Ceramic - Fused Silica 195

Ceramics 196

Char - Sulfuric Acid 197

Chromium Carbide 198

Clay 199

Coal 200

Coal 201

Coal Ash 202

Cr2O3 203

Cryolite / Electrolytic Bath 204

Diesel Fuel 206

Feldspar 207

Feldspar 208

Furnace Slag 210

Gas Atomized Powder 211

Gemanium 212

Glass Fiber 213

Hafnium Oxide 214

Ilmenite (FeTiO3) 215

Iron Ore 216

Kaolin 217

Kerosene 218

Lead Sulfide (PbS) 219

Lithium Nickel Cobalt Manganese Oxide 220

Manganous Oxide (MnO) 221

Mica 223

Mill Tailings 224

Mineral Oil 226

Mineral Ore 227

Molybdenum Disulfide (MoS2) 229

Motor Oil - Waste 231

Nickel (II) Hydroxide 232

Niobium Pentoxide 233

Petroleum Coke 234

Phosphate Rock 236

Pyrophyllite (AlSi2)5(OH) 237

Quartz Powder 238

Rock (Pulverized) 239

Rock, High Sulfide 240

Rutile Ore 242

Sand 243

Shale 244

Silica 245

Silica Sand 246

Silicon Dioxide 247

Silicon Nitride 248

Silicon Wafer 249

Slag - Furnace 250

Sodium Antimonate 251

Spodumene (Lithium Feldspar) 252

Sulfide Bulk Concentrate 254

Tantalum Pentoxide (O5Ta2) 256

Titanium Dioxide 257

Titanium Slag Ore 258

Tungsten Carbide 259

Tungsten Ore (50% W; 10% Fe; 2% Mn) 260

Tungsten Oxide 261

Vermiculite 262

Wollastonite (Calcium Silicate) 263

Zeolite 264

Zinc Oxide 265

Zinc Oxide (ZnO) 266

Zircon 267

Industrial Hygiene

Asbestos 269

Filter - 37 mm Mixed Cellulose Ester 270

Filter - 47 mm Polycarbonate 271

Filter Paper - Cellulose 272

Ghost Wipe 273

Paint Chips (For Pb Analysis) 274

Quartz Fiber Filters 275

Toray Filter 276

Toray Filter (Anion) 277

Toray Filter (Cation) 278

Materials Science

Acrylic Tape 280

Circuit Board (Cryo - Ground) 281

Gas Atomized Powder 282

Glass (Ground) 283

Graphite Composite - Cyanate Ester Resin 284

Graphite Composite - Epoxy Resin 285

Graphite Composite - PEEK Resin 286

Graphite Fiber - Cyanate Siloxane Resin 287

Graphite Fiber - Epoxy Resin (Fiber Content) 288

Metals and Alloys

Alpha - Alumina 290

Aluminum (Metal) 291

Aluminum Alloy 292

Aluminum Alloy (20% SiC) 293

Aluminum Alloy (BCS 182) 294

Aluminum Oxide 295

Boron 296

Boron Carbide (B4C) 297

Carbonyl Iron 298

Cobalt - Chromium Alloy 299

Copper (Metal) 301

Copper Ore 302

Gallium 303

Iron - Chrome Alloy 304

Iron - Chromium Alloy 305

Iron - Manganese Alloy 307

Iron - Silicon Alloy 308

Iron Lignosulfonate 309

Lead Sulfide (PbS) 310

Lithium Nickel Cobalt Manganese Oxide 311

Manganous Oxide (MnO) 312

Metal Alloy - FeCr 314

Metal Alloy - NiCr 315

Metal Alloy (Ag, Au, Cu) 316

Metal Alloy (Ag, Co, Cu) 317

Metal Alloy (Ag, Cu, Sn) 318

Metals Alloy - CoCr 319

Nickel (II) Hydroxide 321

Nickel (Metal) 322

Niobium - Titanium Alloy 323

Platinum Iridium Wire 324

Platinum Metal 325

Platinum Metal 326

Platinum Ruthenium 327

Precious Metal Ore 328

Rhodium Sponge 330

Selenium Alloy 331

Sn - Ag Solder 332

Stainless and Low Carbon Steel 333

Stainless Steel 334

Steel (Stainless) 335

Strontium Ferrite 336

Titanium Alloy 337

Titanium Dioxide 338

Tungsten Ore (50% W; 10% Fe; 2% Mn) 339

Zinc Oxide (ZnO) 340

Zircon Alloy 341

Nutraceuticals

Biotin 343

Cannabis (Plant) 344

Chili Powder 345

Ginkgo (Ground) 346

Ginkgo (Whole Pill) 347





Kelp 352

Milk (Liquid) Whole 353

Milk Powder 354

Plant Tissue 355


Wheat 357

Whey Powder 358

Organic Chemicals

Di-(2-ethylhexyl)phosphoric Acid 360

Diazo Sulfonyl Chloride 361

Food Dye (Erythrosine Based) 362

Methylcellulose (Hydroxypropyl) 363

Monoethanolamine 364

Photoresist 365

Polygluteramide 366

Paints and Coatings

Paint (Latex Based Liquid) 368

Paint Chips (For Pb Analysis) 369

Photoresist 370

Polyurethane 371

Toner (Ink) 372

Toner (Powder) 373

Paper and Pulp

Filter - 37 mm Mixed Cellulose Ester 375

Filter - 47 mm Polycarbonate 376

Filter Paper - Cellulose 377

Paper Pulp 378

Personal Care (Health and Beauty)


Cosmetics (Make-Up) Liquid 381

Eye Shadow 382

Shampoo (Dandruff) 383

Pharmaceutical and Biotech

Allergy Pill (Ground) 385

Allergy Pill (Whole Pill) 386

Antioxidant (Ground) 387

Antioxidant (Whole Pill) 388

APIs with Aromatic Ring Structures 389

Ascorbic Acid 390

Aspirin (Ground) 391

Aspirin (Whole) 392

Beta Carotene 393

Biotin 394

Calcium Carbonate 395

Calpan Pantothenic Acid 396

Cephalexin 397

Chromium Chelate 398

Cold and Flu Medicine (Liquid) 399

Cupric Sulfate 400

Diclofenac K 401

Empty Capsule (Gel) 402

Erythromycin 403

Fish Oil (No Capsule) 404

Flurbiprofen 405

Folic Acid 406

Ginkgo (Ground) 407

Ginkgo (Whole Pill) 408

Hydrocodone 409

Ibuprofen (Ground) 410

Kelp 411

Losartan K 412

Magnesium Carbonate 413

Magnesium Oxide 414

Manganese Carbonate 415

Medroxyprogesterone 416

Metformin (Ground) 417

Multivitamin (Ground) 418

Multivitamin (Whole) 419

Naproxen Sodium 420

Niacinamide 421

Pantothenic Acid 422

Potassium Chelate 423

Protopic Ointment 424

Pyridoxine 425

Riboflavin 426

Selenium Chelate 427

Sleep Aid 428

Sodium Polystyrene Sulfonate 429

Stearic Acid 430

Sudan Orange (4-Fluorophenyl) 431

Thiamine 432

Transdermal Patch 433

Trixie Phosphate 434


Vitamin B-12 436

Vitamin C (Ground) 437

Vitamin C (Whole) 438

Vitamin Concentrate (High Fe) 439

Vitamin D 440

Vitamin D3 441

Vitamin E 442

Vitamins 443

Zinc Sulfate 444

Plastics, Polymers, and Oils

Acrylamide 446

Brominated Flame Retardant 447

Bunker Oil 448

Bunker Oil 449

Char - Sulfuric Acid 450

Crude Oil 451

Diesel Fuel 452

Epoxy Hardener 453

Fatty Alcohol 454

Fluorinated Ethylene Propylene (FEP) 455

Fuel Oil (Slurry) 456

Gasoline 458

Glycerol Ester of Wood Rosin (Ground) 459

HDPE 460

Kerosene 461

Kevlar 462

Lube Oil 463

Methyl Ester of Hydrogenated Wood Rosin (Ground) 464

Mineral Oil 465



Motor Oil (New) 468

Nylon 469

PET 470

PET (Polyethylene Terephthalate) 471

Petrolatum 472

Petroleum Based Wax 473

Plasticizer (Filter) 474

Plasticizers 475

Polycarbonate Resin 476

Polycarbonate Resin 478

Polyethersulfone (Filter Paper) 480

Polyethylene - High Density 481

Polyphenylene Sulfide 482

Polypropylene 483

Polyterpene Resin 484

Polyurethane 485

PVC (Polyvinyl Chloride Resin) 486

Rubber 487

Rubber (Synthetic) 488

Silane Terminated Polyether 489

Silicone Tubing - TiO2 Filler 490

Styrene Acrylate 491

Terephthalic Acid 492

Wear Metals in Oil 493

Water and Wastewater Treatment

NPDES (Waste Water) 495

Sludge (Industrial) 496

TCLP Extract 497

US EPA 3015 (Aqueous Samples) 498

US EPA 3015a (Aqueous Sample) 499

Waste Activated Sludge 500

Water (For Analysis of Phosphorous) 501

Agriculture

1

Microwave Digestion ofAlfalfa

AgriculturMARS 6

* Ramp times and power may vary depending on the type and number of vessels.

Method TypeOne Touch

Control TypeRamp to Temperature

Sample TypeOrganic

Heating Program

Max Sample Weight0.5 g

ReagentsHNO₃

Recommended VesselsEasyPrepEasyPrep PlusMARSXpressMARSXpress Plus

Recommended EquipmentMARS 6MARS 6 iWave

Notes

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

Stage Temp (°C) *Ramp (mm:ss) Hold (mm:ss) Pressure (psi) * Power (W) Stirring

1 200 15:00 15:00 800 900-1050 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) The control / reference vessel must contain the largest and most reactive sample.d) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.e) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vesselsdetected.

ResultsSample was clear, colorless, and particle free upon dilution to 50 mL.

520

2

Microwave Digestion ofBoric Acid HF Neutralization

AgriculturMARS 6




Sample TypeOrganic

Heating Program

Max Sample WeightVaries by Sample

ReagentsH₃BO₃ (4%)

Recommended VesselsEasyPrepEasyPrep Plus

Recommended Equipment

NotesThis procedure can be used if it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed by reaction of certain analytes with hydrofluoric acid.

Alternatively, 1-4 g of solid H₃BO₃ + 25 mL deionized H₂O can be used in place of the 4% w/v solution.

ProcedureAllow vessel to cool. Add 30 mL H₃BO₃ (4%) into the vessel that contains the sample and acid.


1 170 15:00 15:00 800 900-1050 Off


ResultsSee sample specific method notes.

6

3

Microwave Digestion ofCannabis (Plant)

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HNO₃, or alternatively 9 mL HNO₃, and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 20:00 10:00 800 900-1050 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) The control / reference vessel must contain the largest and most reactive sample.d) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.e) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.


715

4

Microwave Digestion ofCoffee Beans

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may; however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.5 g of ground sample into the digestion vessel. Add 10 ml of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 20:00 15:00 800 900-1050 Off


ResultsSample was clear, colorless, and particle free upon dilution to 50 ml.

10

5

Microwave Digestion ofCotton

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 off



231

6

Microwave Digestion ofFeed Grain

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃, HCl




ProcedureWeigh 0.5 g (0.25 g w/Xpress Vessels) of the sample into the digestion vessel. Add 10 ml of HNO₃, and 2 ml of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 off



232

7

Microwave Digestion ofFertilizer - AOAC Method 2017.02

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl



NotesThe addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis. This method may not provide a total digest of all fertilizer samples.

ProcedureWeigh 1 g (0.5 g for organic matrices) of the sample into the digestion vessel. Add 9 mL of HNO₃, and 3 mL HCl. Gently swirl the mixture and wait approximately 20 minutes before closing the vessel.


1 200 15:00 20:00 800 900-1050 Off


ResultsSample was clear, colorless, with some particles (silicates) remaining upon dilution to 50 mL.

535

8

Microwave Digestion ofFertilizer -AOAC Method 2006.03

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis method may not provide a total digest of all fertilizer samples.

ProcedureWeigh 1 g (0.5 g for organic matrices) of the sample into the digestion vessel. Add 10 ml of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 20:00 800 900-1050 Off



233

9

Microwave Digestion ofGeraniums

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



521

10

Microwave Digestion ofImpatiens

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



522

11

Microwave Digestion ofLeather

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 200 15:00 15:00 800 900-1050 Off



490

12

Microwave Digestion ofPalm Leaves

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL HNO₃, and 2 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



523

13

Microwave Digestion ofPlant Tissue

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis. Some plant tissues contain silicates which would require HF for total dissolution.



1 200 15:00 15:00 800 900-1050 off



234

14

Microwave Digestion ofSoybean

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g of ground sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 off



235

15

Microwave Digestion ofSoybean Meal

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



524

16

Microwave Digestion ofSpinach Leaves

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 ml of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 off



236

17

Microwave Digestion ofStraw

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF



NotesThe above procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric HF Neutralization” The addition of Conc. HCl (0-4mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 ml of HNO₃, and 1 ml of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



237

18

Microwave Digestion ofTea Extract

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl



NotesThe addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 9 mL of HNO₃ and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 20:00 10:00 800 900-1050 Off



525

19

Microwave Digestion ofTea Tannin

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl



NotesThe addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 9 mL HNO₃ and 1 mL HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 20:00 10:00 800 900-1050 Off



526

20

Microwave Digestion ofTobacco

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe use of HF may be required to digest any silicates found in the sample.



1 200 15:00 15:00 800 900-1050 Off



238

21

Microwave Digestion ofWheat

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



239

22

Microwave Digestion ofWood Pulp

AgriculturMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 g (Wet Weight)

ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (wet weight) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



527

23

Microwave Digestion ofWool

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



528

24

Microwave Digestion ofYeast

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1.0 g of dry weight (0.5 g w/Xpress vessels) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



240

25

Clinical and Biological

26

Microwave Digestion ofAnimal Tissue (Dry)

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may; however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.5 g (0.25 g w/MARSXpress Vessels) into the digestion vessel. Add 10 ml of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



4

27

Microwave Digestion ofAnimal Tissue (Wet)

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 1 g wet weight (0.5 g w Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



241

28

Microwave Digestion ofBeef Bone

Clinical aMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 g (Ground)

ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (ground) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



529

29

Microwave Digestion ofBlood - Human

Clinical aMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight2 mL

ReagentsHNO₃ H₂O₂



NotesTake caution when mixing the acids and the sample. The sample may foam slightly.

ProcedureWeigh 2 mL of the sample into the digestion vessel. Add 5 mL of HNO₃ and 2 mL of H₂O₂. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



242

30

Microwave Digestion ofBlood - Human

Clinical aMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 mL

ReagentsHNO₃

Recommended Vessels10 mL MARSXpress20 mL MARSXpress


Notes

ProcedureAdd 0.5 mL of the sample into the digestion vessel. Add 2 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 N/A 1030-1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.c) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.


737

31

Microwave Digestion ofBovine Blood

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureAdd 1 mL of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



531

32

Microwave Digestion ofBovine Liver (Wet)

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1.0 g wet weight (0.5 g w/Xpress Vessels) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



243

33

Microwave Digestion ofBrain Tissue (Dog)

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1 g (wet weight) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



532

34

Microwave Digestion ofDog Feces

Clinical aMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.2 g (Dry Weight)

ReagentsHNO₃



Notes

ProcedureWeigh 0.2 g (dry weight) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



533

35

Microwave Digestion ofFingernails

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.1 g (0.05 g if using the 10 mL vessel) of the sample into the digestion vessel. Add 4 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 180 15:00 15:00 N/A 1030-1800 Off


ResultsSample was clear, colorless and particle free upon dilution to 50 mL.

741

36

Microwave Digestion ofHair

Clinical aMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weightsome

ReagentsHNO₃



Notes

ProcedurePut some hair in a vessel. Add some HNO3


1` 800 15 15 8000 10 Med

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.d) If using HF, follow restrictions listed in HF Addendum

ResultsIt is gonna be good.

17

37

Microwave Digestion ofHair

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.1 g (0.05 g if using the 10 mL vessel) of the sample into the digestion vessel. Add 4 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 180 15:00 15:00 N/A 1030-1800 Off



740

38

Microwave Digestion ofLobster Hepatopancreas (Tort-CRM)

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1.0 g dry weight (0.5 g w/Xpress Vessels) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



244

39

Microwave Digestion ofRat Kidney

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1 g (wet weight) of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



534

40

Microwave Digestion ofUrine - Human

Clinical aMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃H₂O₂



NotesTake caution when mixing the acids and the sample. The sample may foam slightly.

ProcedureTransfer 4 ml of the sample into the digestion vessel. Add 4 mL of HNO₃, and 2 mL of H₂O₂. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



245

41

Consumer Products

42


AgriculturMARS 6




Sample TypeOrganic

Heating Program









1 170 15:00 15:00 800 900-1050 Off



6

43

Microwave Digestion ofCandle Fragrance

ConsumeMARS 6


Method TypeClassic


Sample TypeStandard

Heating Program


ReagentsHNO₃HCl

Recommended VesselsiPrep

Recommended EquipmentMARS 6 iWave

NotesThis application can only be run in the iPrep vessel.

The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution.The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureAdd 0.15 g of the sample into the digestion vessel. Add 7 mL of HNO₃ and 1 mL HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 250 30:00 30:00 N/A 500-1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.

ResultsSample was clear and colorless upon dilution to 50 mL.

676

44

Microwave Digestion ofCosmetics (Make-Up) Liquid

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 1 g of the sample into the digestion vessel. Add 8 mL of HNO₃ and 2 mL of HF. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



246

45

Microwave Digestion ofCotton

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 off



231

46

Microwave Digestion ofDeodorant (Powder)

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 210 25:00 15:00 800 1030-1800 Off



735

47

Microwave Digestion ofEye Shadow

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 7 mL of HNO₃ and 3 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 15:00 15:00 800 900-1050 Off


ResultsSample was clear, colorless, and particle free upon dilution to 50 mL

247

48

Microwave Digestion ofFoam (Mattress)

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃H₂SO₄




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL HNO₃ and 1 mL of H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 250 30:00 15:00 N/A 1800 Off



670

49

Microwave Digestion ofShampoo (Dandruff)

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



248

50

Microwave Digestion ofSuppository (Capsule)

ConsumeMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Capsule (Approx 1 g)

ReagentsHNO₃



NotesEnsure that the capsule is completely covered with reagent before sealing the vessel.

ProcedureWeigh 1 Capsule (approx. 1.0 g) into the digestion vessel. Add 12 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



249

51

Microwave Digestion ofToothpaste

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.1 g of the sample onto a filter disk and insert into the digestion vessel. Add 8 mL HNO₃ and 2 mL HF. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 200 20:00 15:00 800 1030-1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) The control / reference vessel must contain the largest and most reactive sample.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.e) If using HF, follow restrictions listed in HF Addendum


733

52

Microwave Digestion ofVaseline

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



250

53

Microwave Digestion ofWax (Candle)

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



251

54

Environmental and Regulatory

55


AgriculturMARS 6




Sample TypeOrganic

Heating Program









1 170 15:00 15:00 800 900-1050 Off



6

56

Microwave Digestion ofFertilizer - AOAC Method 2017.02

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl



NotesThe addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis. This method may not provide a total digest of all fertilizer samples.

ProcedureWeigh 1 g (0.5 g for organic matrices) of the sample into the digestion vessel. Add 9 mL of HNO₃, and 3 mL HCl. Gently swirl the mixture and wait approximately 20 minutes before closing the vessel.


1 200 15:00 20:00 800 900-1050 Off


ResultsSample was clear, colorless, with some particles (silicates) remaining upon dilution to 50 mL.

535

57

Microwave Digestion ofFertilizer -AOAC Method 2006.03

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis method may not provide a total digest of all fertilizer samples.

ProcedureWeigh 1 g (0.5 g for organic matrices) of the sample into the digestion vessel. Add 10 ml of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 20:00 800 900-1050 Off



233

58

Microwave Digestion ofFly Ash (Step 1 of 2)

EnvironmMARS 6 (




Sample TypeStandard

Heating Program


ReagentsH₂SO₄ H₃PO₄




ProcedureAdd 0.1 g of the sample into the digestion vessel. Add 3 mL of H₂SO₄ and 3 mL of H₃PO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 260 35:00 30:00 N/A 500-1800 Off

59

Microwave Digestion ofFly Ash (Step 2 of 2)

EnvironmMARS 6 (

ProcedureAllow vessels to cool. Open and add 1.5 mL of HNO₃, 1.5 mL of HCl, and 1.5 mL of HF. Wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.

ReagentsHNO₃HClHF

NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled "Boric Acid HF Neutralization".

The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

Heating Program



1 230 30:00 30:00 N/A 500-1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as one touch, the ramp time and power will be automatically determined based on the number and type of vesselsdetected.


649

60

Microwave Digestion ofLimestone

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF



NotesAllow any initial reaction to subside before sealing the vessel.

This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve in soluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 7.5 mL of HNO₃ and 2.5 ml of HF. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off


ResultsSample was clear, colorless and particle free upon dilutionto 50 ml.

2

61

Microwave Digestion ofNPDES (Waste Water)

EnvironmMARS 6




Sample TypeWater

Heating Program


ReagentsHNO₃ HCl

Recommended Vessels75 mL MARSXpressEasyPrepEasyPrep PlusMARSXpress Plus



ProcedureTransfer 50 mL of the sample into the digestion vessel. Add 3 mL of HNO₃, and 2 mL HCl. Gently swirl the mixture before closing the vessel.


1 165 30:00 0:00 800 900-1050 Off



252

62

Microwave Digestion ofPine Needles

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃H₂O₂ (30%)



Notes

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 8 mL of HNO₃ and 2 mL of H₂O₂ (30%). Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



253

63

Microwave Digestion ofRoHS (For Pb, Hg, and Cd Analysis)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ H₂SO₄



Notes

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 10 mL of HNO₃, and 0.02 mL of H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 10:00 15:00 800 900-1050 Off



254

64

Microwave Digestion ofSediment (BCCS - 1 CRM) (Leach)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis method may not provide a total digest of all samples. Hydrofluoric acid will be required to provide complete digestion of some sample matrixes. The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HNO3. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 180 15:00 15:00 800 900-1050 Off



255

65

Microwave Digestion ofSediment (Buffalo River) (Leach)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis method may not provide a total digest of all samples. Hydrofluoric acid will be required to provide complete digestion of some sample matrixes. The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.5 g into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 175 15:00 15:00 800 900-1050 Off



256

66

Microwave Digestion ofSludge (Industrial)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe use of HF may be required to digest any silicates found in the sample. The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 200 15:00 15:00 800 900-1050 Off



257

67

Microwave Digestion ofSoil (Montana - CRM) (Leach)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis method may not provide a total digest of all samples. Hydrofluoric acid will be required to provide complete digestion of some sample matrixes. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 175 15:00 15:00 800 900-1050 Off



258

68

Microwave Digestion ofTCLP Extract

EnvironmMARS 6



Control TypeStandard Control

Sample TypeWater

Heating Program


ReagentsHNO₃

Recommended VesselsEasyPrep PlusMARSXpressMARSXpress Plus


Notes

ProcedureTransfer 25 mL of the sample into the digestion vessel. Add 5 mL of HNO₃. Gently swirl the mixture before closing the vessel. If a high organic content is suspected, a 10 ml sample volume is recommended.


1 170 10:00 10:00 800 900-1050 Off



259

69

Microwave Digestion ofUS EPA 3015 (Aqueous Samples)

EnvironmMARS 6




Sample TypeWater

Heating Program


ReagentsHNO₃

Recommended Vessels75 mL MARSXpressEasyPrep PlusMARSXpress Plus


Notes

ProcedureTransfer 45 mL of the sample into the digestion vessel. Add 5 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 170 10:00 10:00 800 900-1050 Off


ResultsThis method is intended to be an acid leach, not a total digest. Hydrofluoric acid will be required to provide complete digestion of the sample matrix.

260

70

Microwave Digestion ofUS EPA 3015a (Aqueous Sample)

EnvironmMARS 6




Sample TypeWater

Heating Program


ReagentsHNO₃HCl (Optional)




ProcedureTransfer 45 mL of the sample into the digestion vessel. Add 5 mL of HNO3, or alternatively 4 mL of HNO₃ and 1 mL HCl. Gently swirl the mixture before closing the vessel.


1 170 10:00 10:00 800 900-1050 Off



261

71

Microwave Digestion ofUS EPA 3051 (Solid Sample)

EnvironmMARS 6




Sample TypeWater

Heating Program





Notes

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 175 5:30 4:30 800 900-1050 Off


ResultsThis method is intended to be an acid leach, not a total digest. Hydrofluoric acid will be required to provide complete digestion of the sample matrix. (See method 3052 for total digestion).

262

72

Microwave Digestion ofUS EPA 3051a (Solid Sample)

EnvironmMARS 6




Sample TypeOrganic

Heating Program






ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HNO₃, or alternatively 9 mL HNO₃, and 1 mL HCl. Gently swirl the mixture before closing the vessel.


1 175 5:30 4:30 800 900-1050 Off


ResultsThis method is intended to be an acid leach, not a total digest. Hydrofluoric acid will be required to provide complete digestion of the sample matrix. (See method 3052 for total digestion)

263

73

Microwave Digestion ofUS EPA 3052

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF



Notes

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 9 mL of HNO₃, and 3 mL HF. Gently swirl the mixture before closing the vessel.


1 180 5:30 9:30 800 900-1050 Off



264

74

Microwave Digestion ofUSP 232/233 (Pharmaceuticals)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl




ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 9 mL of HNO₃, and 1 mL HCl. Gently swirl the mixture before closing the vessel.


1 210 20:00 15:00 800 900-1050 Off



265

75

Microwave Digestion ofWaste Activated Sludge

EnvironmMARS 6




Sample TypeOrganic

Heating Program





Notes

ProcedureWeigh 0.5 g dry weight (0.25 g w/Xpress Vessels) of the sample into the digestion vessel. Add 5 mL of HNO₃, and 5 mL of H₂O₂. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



266

76

Microwave Digestion ofWater (For Analysis of Phosphorous)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsK₂S₂O₈ H₂SO₄


Recommended EquipmentMARS 6

Notes

ProcedureWeigh 50 mL of H₂O into the digestion vessel. Add 0.5 g of K₂S₂O₈ and 1 mL of H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 170 15:00 15:00 800 900-1050 Off



267

77

Microwave Digestion ofWood

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



268

78

Food Testing

79

Microwave Digestion ofAlum

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled "Boric Acid HF Neutralization". The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 3 mL of HCl, 5 mL of HF, and 2 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 200 15:00 10:00 800 900-1050 Off



536

80

Microwave Digestion ofApple

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



269

81

Microwave Digestion ofAsparagus

Food TestMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 (Dry Weight)

ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off


Resultssample was clear, colorless, and particle free upon dilution to 50 mL.

270

82

Microwave Digestion ofBacon (Cooked Pieces)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃DI H₂O



Notes

ProcedureWeigh 1.0 g of the sample into the digestion vessel. Add 8 mL of HNO₃ and 2 mL of DI H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



271

83

Microwave Digestion ofBeef (Ground)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



272

84

Microwave Digestion ofBeef Bouillon

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



537

85

Microwave Digestion ofBeer (Light)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



273

86

Microwave Digestion ofBlueberry

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



275

87

Microwave Digestion ofBroccoli

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 20 15:00 15:00 800 900-1050 Off



277

88

Microwave Digestion ofCaramel Color

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 2.0 mL of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



278

89

Microwave Digestion ofCarrot

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



279

90

Microwave Digestion ofCelery

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



280

91

Microwave Digestion ofChai Tea

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ DI H₂O




The use of HF may be required to digest any silicates found in the sample.

ProcedureWeigh 2.5 g of the sample into the digestion vessel. Add 10 mL HNO₃ and 5 mL deionized H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 240 30:00 30:00 N/A 500-1800 Off


ResultsSample was clear and colorless with some small particles (silicates) remaining upon dilution to 50 mL.

679

92

Microwave Digestion ofCheese (Processed)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 ml of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 Off



282

93

Microwave Digestion ofCheese Cracker

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



281

94

Microwave Digestion ofCheese Powder

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



538

95

Microwave Digestion ofCherry

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



283

96

Microwave Digestion ofChewing Gum

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis. The use of HF may be required to digest any silicates found in the sample.



1 210 20:00 15:00 800 900-1050 Off



284

97

Microwave Digestion ofChicken (Boneless)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



285

98

Microwave Digestion ofChili Candy (Mexican)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



286

99

Microwave Digestion ofChili Powder

Food TestMARS 6




Sample TypeStandard

Heating Program









1 240 30:00 30:00 N/A 500-1800 Off



680

100

Microwave Digestion ofChips (Potato)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



287

101

Microwave Digestion ofCitrus Leaves

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃DI H₂OHF




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 6 mL of HNO₃, 3 mL of deionized H₂O, and 1 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 200 15:00 15:00 800 900-1050 Off



539

102

Microwave Digestion ofClam Puree

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



540

103

Microwave Digestion ofCocoa

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



541

104

Microwave Digestion ofCoconut

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



542

105

Microwave Digestion ofCoffee (Beans)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



288

106

Microwave Digestion ofCoffee Beans

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may; however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.5 g of ground sample into the digestion vessel. Add 10 ml of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 20:00 15:00 800 900-1050 Off



10

107

Microwave Digestion ofCucumber

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



289

108

Microwave Digestion ofDog Food (Dry)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g of sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 Off


ResultsSample was clear, colorless, and particle free upon dilution to 50 Ml

290

109

Microwave Digestion ofDog Food (Wet)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 1 g of wet sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 Off



291

110

Microwave Digestion ofFish Tissue

Food TestMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 g (dry weight)

ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (dry weight) up to 2 g (wet weight) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



543

111

Microwave Digestion ofFlounder

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



544

112

Microwave Digestion ofFlour

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



292

113

Microwave Digestion ofFood

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g dry weight (0.25 g w/Xpress vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃ . Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 15:00 15:00 800 900-1050 Off



294

114

Microwave Digestion ofFood Coloring (Liquid)

Food TestMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 mL.

ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



293

115

Microwave Digestion ofFruit Juice

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



295

116

Microwave Digestion ofGelatin

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



545

117

Microwave Digestion ofGranola Bar

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



296

118

Microwave Digestion ofGrape

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



297

119

Microwave Digestion ofGrapefruit

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



298

120

Microwave Digestion ofGummy Bear

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 210 20:00 15:00 800 900-1050 Off



729

121

Microwave Digestion ofHam

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



299

122

Microwave Digestion ofInfant Cereal (Rice Grain)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



300

123

Microwave Digestion ofInfant Formula (Liquid)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis application can only be run in the iPrep vessel. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureTransfer 2 mL of of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 210 30:00 20:00 N/A 500-1800 Off


Results Sample was clear, colorless and particle free upon dilution to 50 mL

301

124


Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureTransfer 1 mL (0.5 mL w/Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



302

125

Microwave Digestion ofInfant Formula (Powder)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 1 g of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 210 20:00 20:00 N/A 500-1800 Off



303

126


Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g (0.25 g w/Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



304

127

Microwave Digestion ofKidney Bean

Food TestMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 (Dry Weight)

ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (dry weight) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



305

128

Microwave Digestion ofKielbasa Sausage

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



546

129

Microwave Digestion ofMaple Syrup

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



306

130

Microwave Digestion ofMayonnaise

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



307

131

Microwave Digestion ofMeal Replacement Shake (Chocolate)

Food TestMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 g (Dry Mix)

ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (dry mix) of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



547

132

Microwave Digestion ofMilk (Liquid) Whole

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



309

133

Microwave Digestion ofMilk Powder

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



310

134

Microwave Digestion ofNutritional Drink (Adult)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



276

135

Microwave Digestion ofOlive Oil

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



312

136

Microwave Digestion ofOrange Juice

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



313

137

Microwave Digestion ofOyster Puree

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1 g (wet weight) of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



548

138

Microwave Digestion ofPeanut Butter

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



314

139

Microwave Digestion ofPear

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



315

140

Microwave Digestion ofPepper (Bell, Chili, Etc.)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



316

141

Microwave Digestion ofPistachio Nuts

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (ground) of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



549

142

Microwave Digestion ofPizza (Frozen, Pepperoni)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1.0 g (homogenized) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



317

143

Microwave Digestion ofPlum

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



318

144

Microwave Digestion ofPork (Ground)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



319

145

Microwave Digestion ofPotato

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



320

146

Microwave Digestion ofPotato Chips

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (ground) of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



550

147

Microwave Digestion ofPretzel (Salted)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



321

148

Microwave Digestion ofProtein Bar

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g ground sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 Off



322

149

Microwave Digestion ofRaspberry

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (dry weight) of the sample into the digestion vessel. Add 10 mL of HNO3. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



323

150

Microwave Digestion ofRice

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



324

151

Microwave Digestion ofSafflower Oil

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



325

152

Microwave Digestion ofSalad Dressing (Ranch)

Food TestMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.5 g (Dry Mix)

ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g (dry mix) of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



551

153

Microwave Digestion ofSalami

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



326

154

Microwave Digestion ofSausage

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



327

155

Microwave Digestion ofSoda (Diet)

Food TestMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight 1 mL

ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



328

156

Microwave Digestion ofSodium Free - Seasoning

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



552

157

Microwave Digestion ofSoybean

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



329

158

Microwave Digestion ofSpinach

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



331

159

Microwave Digestion ofSpinach Leaves

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis. Some plant tissues contain silicates which would require HF for total dissolution.



1 210 20:00 15:00 800 900-1050 Off



330

160

Microwave Digestion ofSpinach Pasta

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



553

161

Microwave Digestion ofStrawberry

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



332

162

Microwave Digestion ofSugar (Granulated)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



333

163

Microwave Digestion ofTea Leaves

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



334

164

Microwave Digestion ofTomato Leaves

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesSome plant tissues contain silicates which would require HF for total dissolution.



1 200 15:00 15:00 800 900-1050 Off


ResultsSample was clear, colorless, with white silica particles upon dilution to 50 mL.

335

165

Microwave Digestion ofTomato Pasta (70% Moisture)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 2 g of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



554

166

Microwave Digestion ofTomato Soup

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



336

167

Microwave Digestion ofWalnut

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



337

168

Microwave Digestion ofWatermelon

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



338

169

Microwave Digestion ofWheat Crackers

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



555

170

Microwave Digestion ofWhey

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



340

171

Microwave Digestion ofWhey Powder

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 15:00 15:00 800 900-1050 Off



339

172

Microwave Digestion ofWine

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureTransfer 1 mL of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 Off



341

173

Microwave Digestion ofYogurt (Plain)

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



342

174

Geoscience and Mining

175

Microwave Digestion ofAlpha - Alumina

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHCl




Ensure that particles are well suspended in acid mixture prior to sealing vessel.

Stirring may be helpful to keep particles suspended in solution during digestion.

ProcedureWeigh 0.5 g of sample into the digestion vessel. Add 10 mL HCl. Gently swirl the vessel to thoroughly mix the sample and acid.


1 240 30:00 60:00 N/A 1800 N/A



343

176

Microwave Digestion ofAlumina Beads (w/ Silver substrate) (Step 1 of 2)

GeoscienMARS 6 (


Method TypeClassic


Sample TypeOrganic

Heating Program


ReagentsH₃PO₄H₂SO₄



Notes

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 6.5 mL of H₃PO₄, and 3.5 mL of H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 280 30:00 45:00 N/A 1800 Off

177

Microwave Digestion ofAlumina Beads (w/ Silver substrate) (Step 2 of 2)

GeoscienMARS 6 (

ProcedureAllow vessel to cool after completion of Step 1. Proceeding step one, add 3 mL of HNO₃, and 3 mL HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

ReagentsHNO₃HF


Heating Program



1 220 25:00 30:00 N/A 1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.


616

178

Microwave Digestion ofAlumina Powder

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsH₃PO₄




ProcedureAdd 0.1 g of the sample into the digestion vessel. Add 8 mL of H₃PO₄. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 275 30:00 45:00 N/A 900-1800 Off


ResultsSample was clear, gold colored, and particle free upon dilution to 50 mL.

672

179

Microwave Digestion ofAluminum Nitride

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsH₃PO₄ HCl




ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 5 mL H₃PO₄ and 10 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 175 15:00 10:00 800 900-1050 Off



560

180

Microwave Digestion ofAluminum Oxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program





NotesEasyPrep Plus requires a high temperature probe for this method. Ensure that particles are well suspended in acid mixture prior to sealing vessel. Stirring may be helpful to keep particles suspended in solution during digestion.

ProcedureWeigh 0.25 g of sample into the digestion vessel. Add 6.5 mL H₃PO₄ and 3.5 mL H₂SO₄. Gently swirl the vessel to thoroughly mix the sample and acid.


1 270 30:00 20:00 N/A 1800 N/A



344

181

Microwave Digestion ofAluminum Oxide (Powder)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsH₃PO₄




This method may not provide a total digest of all samples. Hydrofluoric acid will be required to provide complete digestion of some sample matrixes.

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 8 mL H₃PO₄. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 260 25:00 45:00 N/A 1800 Off


ResultsSample was clear and colorless with some white particles remaining upon dilution to 50 mL.

673

182

Microwave Digestion ofAsbestos

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃HF



NotesHF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel. This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.3 g of the sample into the digestion vessel. Add 6 mL of HCl, 3 mL of HNO₃, and 3 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



492

183

Microwave Digestion ofAutomotive Catalyst

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. Reducing the particle size increases the efficiency of digestion and may decrease the digestion time.

ProcedureWeigh 0.4 g of the sample into the digestion vessel. Add 10 mL of HCl and 0.5 mL of HF. Gently swirl the mixture before closing the vessel.


1 210 15:00 30:00 800 900-1050 Off



345

184

Microwave Digestion ofBarium Titanate (BaTiO₃)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesHF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel. This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”.

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 5 mL of HNO3 and 10 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 20:00 800 900-1050 Off



493

185

Microwave Digestion ofBastnaesite Ore (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃

Recommended VesselsEasyPrepEasyPrep PlusMARSXpress Plus



ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 9 mL of HCl and 3 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 20:00 30:00 800 900-1050 Off

186

Microwave Digestion ofBastnaesite Ore (Step 2 of 2)

GeoscienMARS 6 (

ProcedureAllow vessels to cool. Open and add 1 g solid Boric Acid and 20 mL deionized H₂O. Wait approximately 15 minutes before closing the vessel.

ReagentsSolid Boric AcidDI H₂O

Notes

Heating Program



1 175 15:00 15:00 800 900-1050 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) The control / reference vessel must contain the largest and most reactive sample.d) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.e) If programming as one touch, the ramp time and power will be automatically determined based on the number and type of vesselsdetected.


559

187

Microwave Digestion ofBauxite (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsH₃PO₄ H₂SO₄



Notes

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 6.5 mL of H₃PO₄ and 3.5 mL of H₂SO₄. Gently swirl the mixture before closing the vessel.


1 240 15:00 15:00 800 900-1050 Off

188

Microwave Digestion ofBauxite (Step 2 of 2)

GeoscienMARS 6 (

ProcedureProceeding step 1 add 1 mL of HNO₃, 1 mL of HCl, and 1 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

ReagentsHNO₃HClHF


Heating Program



1 200 15:00 15:00 800 900-1050 Off



599

189

Microwave Digestion ofBoiler Scale (80-90% Fe)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



494

190


AgriculturMARS 6




Sample TypeOrganic

Heating Program









1 170 15:00 15:00 800 900-1050 Off



6

191

Microwave Digestion ofBoron Carbide (B₄C)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃H₂SO₄HF



NotesThis application can only be run in the iPrep vessel.This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed,an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “BoricAcid HF Neutralization”.Reducing the particle size increases the efficiency of digestion and may decrease the digestion time.

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 5 mL of HNO₃ and 5 mL of H₂SO₄. Gently swirl to mix the sample particles in the acid. Slowly and carefully add 5 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

Allow any initial reaction to subside before sealing vessel.


1 270 30:00 30:00 800 900-1800 Off



674

192

Microwave Digestion ofCarbon

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe structure, form and surface area of carbon samples varies widely. Higher temperatures and use of other reagents may be necessary in order to digest certain samples.

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 10 mL of HNO₃ . Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 215 15:00 15:00 800 900-1050 Off



348

193

Microwave Digestion ofCement

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.3 g of the sample into the digestion vessel. Add 3 mL of HNO₃ , 6 mL of HCL, and 3 mL of HF. Gently swirl the mixture before closing the vessel.


1 175 15:00 15:00 800 900-1050 Off



349

194

Microwave Digestion ofCeramic - Fused Silica

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF



NotesHF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing the vessel. This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Slowly add 2 mL of HNO₃ , and 8 mL of HF. Gently swirl the mixture before closing the vessel.


1 190 10:00 20:00 800 900-1050 Off



350

195

Microwave Digestion ofCeramics

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0. 2 g of the sample into the digestion vessel. Add 5 mL of HNO₃ , and 5 ml of HF. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



351

196

Microwave Digestion ofChar - Sulfuric Acid

GeoscienMARS 6




Sample TypeOrganic

Heating Program

Max Sample WeightVaries by sample

ReagentsH₂SO₄



NotesEasyPrep Plus requires a high temperature probe for this method. This method is for the pretreatment of large sample sizes or difficult organic samples that are resistant to oxidation. After the char is complete, the vessel is opened and a normal oxidation with HNO₃ can be run, usually at around 200C.

ProcedureAdd 5 mL H₂SO₄ into the vessel that contains the sample and acid. For EasyPrep vessels use 6 mL of H2SO4.


1 260 15:00 15:00 800 900-1050 Off



352

197

Microwave Digestion ofChromium Carbide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HF




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HNO₃ and 10 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 200 15:00 15:00 800 900-1050 Off



558

198

Microwave Digestion ofClay

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHFHNO₃HCl



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”.The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 3 mL of HNO₃ , 1 mL of HCl, and 5 ml of HF. Gently swirl the mixture before closing the vessel.


1 200 15:00 10:00 800 900-1050 Off



353

199

Microwave Digestion ofCoal

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis application can only be run in the iPrep vessel. The use of HF may be required to digest any silicates found in the sample. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 250 30:00 20:00 N/A 500-1800 Off


ResultsSample was clear, colorless with some particles remaining upon dilution to 50 mL.

355

200

Microwave Digestion ofCoal

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe use of HF may be required to digest any silicates found in the sample. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 220 15:00 15:00 800 900-1050 Off



356

201

Microwave Digestion ofCoal Ash

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.3 g of the sample into the digestion vessel. Add 3 mL of HNO₃ , 3 mL of HCl and 3 ml of HF. Gently swirl the mixture before closing the vessel.


1 210 15:00 15:00 800 900-1050 Off



354

202

Microwave Digestion ofCr₂O₃

GeoscienMARS 6




Sample TypeStandard

Heating Program

Max Sample Weight50 mg

ReagentsH₂SO₄HNO₃H₂O₂ (30%)




Stirring is required for complete dissolution of this sample type.

ProcedureWeigh 50 mg of the sample into the digestion vessel. Insert stir bar into the vessel. Add 4.5 mL of H₂SO₄ and 4 mL of HNO₃ to the vessel, then 1.5 mL of H₂O₂ (30%) dropwise. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 280 30:00 59:59 N/A 500-1800 Med

2 280 0:00 30:01 N/A 500-1800 Med


ResultsSample was clear and turquoise colored upon dilution to 50 mL.

681

203

Microwave Digestion ofCryolite / Electrolytic Bath (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesCryolite / Electrolytic Bath is approximately 55% Cryolite (Na₃AlF₆) and 30% Chiolite (Na₅Al₃F₁₄).

ProcedureWeigh 0.5g of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel


1 200 15:00 15:00 800 900-1050 Off

204

Microwave Digestion ofCryolite / Electrolytic Bath (Step 2 of 2)

GeoscienMARS 6 (

ProcedureAllow vessel to cool after completion of Step 1. Open and add 30 mL of Deionized Water and 2 g Boric Acid (solid). Gently swirl the mixture and seal the vessel.

ReagentsDI H₂OBoric Acid (solid)

Notes

Heating Program



1 175 15:00 15:00 800 900-1050 Off



496

205

Microwave Digestion ofDiesel Fuel

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe pre-digestion step will allow the lighter fuel fractions to react before sealing the vessels

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 10 mL of HNO₃ . Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



357

206

Microwave Digestion ofFeldspar (EasyPrep Step 1 of 2)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF




The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureAdd 0.2 g of the sample into the digestion vessel. Add 1 mL of HNO₃, 3 mL of HCl, and 4 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



497

207

Microwave Digestion ofFeldspar (iPrep Step 1 of 2)

GeoscienMARS 6 (




Sample TypeStandard

Heating Program


ReagentsHCl HF




This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled "Boric Acid HF Neutralization". The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 2 mL of HCl and 8 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides


1 230 30:00 25:00 N/A 500-1800 Off

208

Microwave Digestion ofFeldspar (Step 2 of 2)

GeoscienMARS 6 (

ProcedureAllow vessels to cool. Open and add 4 g solid boric acid and 30 mL of deionized H2O. Wait approximately 15 minutes before closing the vessel.

ReagentsSolid Boric AcidDI H₂O

Notes

Heating Program



1 170 30:00 10:00 N/A 500-1800 Off



647

209

Microwave Digestion ofFurnace Slag

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used.

This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureAdd 0.5 g of the sample into the digestion vessel. Add 3 mL of HNO₃, 2 mL of HCl, and 5 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



498

210

Microwave Digestion ofGas Atomized Powder

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF




This application can only be run in the iPrep vessel.

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 8 mL of HNO₃, 2 mL of HCl, and 1 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 30:00 20:00 N/A 900-1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vesselsdetected.e) If using HF, follow restrictions listed in HF Addendum

ResultsSamples were clear, green in color and particle free upon dilution to 50 mL.

721

211

Microwave Digestion ofGemanium

GeoscienMARS 6




Sample TypeStandard

Heating Program


ReagentsH₂SO₄HNO₃HClHF



NotesThis application can only be run in the iPrep vessel.This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled "Boric Acid HF Neutralization".The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution.The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 50 mg of the sample into the digestion vessel. Add 4 mL of H₂SO₄, 1 mL of HNO₃, 1 mL of HCl, and 1 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 260 30:00 30:00 N/A 500-1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.e) If using HF, follow restrictions listed in HF Addendum


683

212

Microwave Digestion ofGlass Fiber

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF






1 180 15:00 15:00 800 900-1050 Off



499

213

Microwave Digestion ofHafnium Oxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl or H₂OHF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel. HNO3:HF:H2O (1:1:1) can be substituted for HNO3:HCl:HF (1:1:1) using the same heating program if the use of HCl is not desired. Mixtures are made from acids in their concentrated form.

ProcedureAdd 0.25 g of the sample into the digestion vessel. Add 10 mL of HNO₃:HCl:HF (1:1:1) or alternatively, HNO₃:H₂O:HF (1:1:1). (See Notes) Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 15:00 30:00 800 900-1050 Off



500

214

Microwave Digestion ofIlmenite (FeTiO₃)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF




ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 5 mL of HNO₃, 1 mL of HCl, and 10 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 210 20:00 15:00 800 900-1050 Off



501

215

Microwave Digestion ofIron Ore

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsH₂OHClHNO₃HF



NotesThe above procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric HF Neutralization” The addition of Conc. HCl (0-8 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 1 g of the sample into the digestion vessel. Add 4 mL of H₂O, 8 ml of HCl, 4 mL of HNO₃, and 4 mL of HF. Gently swirl the mixture and wait approximately 15 minute before closing the vessel.


1 200 15:00 10:00 800 900-1050 Off



358

216

Microwave Digestion ofKaolin

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃HF




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 3 mL of HCl, 1 mL of HNO3, and 7 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 200 15:00 10:00 800 900-1050 Off



502

217

Microwave Digestion ofKerosene

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe pre-digestion step will allow the lighter fuel fractions to react before sealing the vessels.



1 200 15:00 15:00 800 900-1050 Off



359

218

Microwave Digestion ofLead Sulfide (PbS)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 20:00 800 900-1050 Off



503

219

Microwave Digestion ofLithium Nickel Cobalt Manganese Oxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl

Recommended VesselsMARSXpress





1 210 20:00 10:00 N/A 1030-1800 Off


ResultsThe samples were clear, green in color, and particle free upon dilution.

724

220

Microwave Digestion ofManganous Oxide (MnO) (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.2g of the sample into the digestion vessel. Add 10 mL HNO₃ and 3 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 180 15:00 10:00 800 900-1050 Off

221

Microwave Digestion ofManganous Oxide (MnO) (Step 2 of 2)

GeoscienMARS 6 (

ProcedureAllow vessel to cool after completion of Step 1. Open and add 5 mL of HCl. Gently swirl the mixture and seal the vessel.

ReagentsHCl


Heating Program



1 180 15:00 10:00 800 900-1050 Off



505

222

Microwave Digestion ofMica

GeoscienMARS 6




Sample TypeStandard

Heating Program


ReagentsH₃PO₄HClHF




This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution.The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 4 mL of H₃PO₄, 3 mL of HCl, and 0.5 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 230 30:00 30:00 N/A 500-1800 Off



690

223

Microwave Digestion ofMill Tailings (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program





NotesEasyPrep Plus vessels require a high temperature probe for this method.

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 3 mL of H₃PO₄, and 2 mL of H₂SO₄. Gently swirl the mixture before closing the vessel. After heating program in step 1, allow vessel to cool before proceeding with step 2


1 270 15:00 30:00 800 900-1050 Off

224

Microwave Digestion ofMill Tailings (Step 2 of 2)

GeoscienMARS 6 (

ProcedureCool, vent and open vessel after step 1. Add 2.5 mL HNO₃, 2.5 mL HCl, 2.5 mL HF, and 2.5 ml H₂O.

HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing the vessel.

ReagentsHNO₃HClHFH₂O

NotesThe above procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in method note entitled “Boric HF Neutralization” The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

Heating Program



1 200 15:00 20:00 800 900-1050 Off



600

225

Microwave Digestion ofMineral Oil

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



459

226

Microwave Digestion ofMineral Ore (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HClHF




ProcedureWeigh 0.3 g of the sample into the digestion vessel. Add 3 mL of HNO₃, 3 mL of HCl, and 3 mL of HF. Gently swirl the mixture before closing the vessel.


1 210 15:00 10:00 800 600-1050 Off

227

Microwave Digestion ofMineral Ore (Step 2 of 2)

GeoscienMARS 6 (

ProcedureProceeding step 1 add 25 mL of Boric Acid (4%). Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


Notes

Heating Program



1 170 15:00 10:00 800 600-1050 Off



516

228

Microwave Digestion ofMolybdenum Disulfide (MoS₂) (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureAdd 0.5 g of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 10:00 800 900-1050 Off

229

Microwave Digestion ofMolybdenum Disulfide (MoS₂) (Step 2 of 2)

GeoscienMARS 6 (

ProcedureAllow vessel to cool after completion of Step 1. Add 10 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

ReagentsHCl


Heating Program



1 180 10:00 10:00 800 900-1050 Off



506

230

Microwave Digestion ofMotor Oil - Waste

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.25 g (0.1 g w/Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



360

231

Microwave Digestion ofNickel (II) Hydroxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 210 20:00 10:00 N/A 1030-1800 Off


ResultsThe samples were clear, light green in color, and particle free upon dilution.

725

232

Microwave Digestion ofNiobium Pentoxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureAdd 1.0 g of the sample into the digestion vessel. Add 2 mL of HNO₃, and 10 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



508

233

Microwave Digestion ofPetroleum Coke (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsH₂SO₄



Notes

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 10 mL of H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 260 15:00 15:00 800 900-1050 Off

234

Microwave Digestion ofPetroleum Coke (Step 2 of 2)

GeoscienMARS 6 (

ProcedureProceeding step 1 add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

ReagentsHNO₃

Notes

Heating Program



1 200 15:00 15:00 800 900-1050 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) The control / reference vessel must contain the largest and most reactive sample.d) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.


601

235

Microwave Digestion ofPhosphate Rock

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HBF₄



Notes

ProcedureAdd 0.5 g of the sample into the digestion vessel. Add 5 mL of HNO₃, 5 mL of HBF₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 180 15:00 15:00 800 900-1050 Off



509

236

Microwave Digestion ofPyrophyllite (AlSi₂)5(OH)

GeoscienMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.25 G

ReagentsHNO₃HClHF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 200 15:00 15:00 800 900-1050 Off



510

237

Microwave Digestion ofQuartz Powder

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHF




ProcedureWeigh 1 g of the sample into the digestion vessel. Add 10 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 200 15:00 30:00 800 900-1050 Off



511

238

Microwave Digestion ofRock (Pulverized)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHFHNO₃






1 200 15:00 15:00 800 900-1050 Off



361

239

Microwave Digestion ofRock, High Sulfide (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 220 30:00 15:00 N/A 900-1050 Off

240

Microwave Digestion ofRock, High Sulfide (Step 2 of 2)

GeoscienMARS 6 (

ProcedureProceeding step 1 add 3 mL of HF, and 2 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

ReagentsHFHCl


Heating Program



1 200 25:00 10:00 N/A 900-1050 Off



628

241

Microwave Digestion ofRutile Ore

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF H₃PO₄.



NotesThe above procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric HF Neutralization”

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 4 mL of HNO₃, 3 mL of H₃PO₄, and 8 mL of HF. Gently swirl the mixture before closing the vessel.


1 240 15:00 20:00 800 900-1050 Off



362

242

Microwave Digestion ofSand

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HFHCl



NotesThe above procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric HF Neutralization” The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 200 15:00 15:00 800 900-1050 Off



363

243

Microwave Digestion ofShale

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHFHNO₃HCl




This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”.

The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.5 g of sample into the digestion vessel. Add 7 mL of HF, 3 mL of HNO₃, and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 25:00 15:00 N/A 900-1050 Off



698

244

Microwave Digestion ofSilica

GeoscienMARS 6




Sample TypeSolid

Heating Program


ReagentsHClHF




This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled "Boric Acid HF Neutralization".


ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 2 mL of HCl and 8 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.



1 230 30:00 25:00 N/A 500-1800 Off


ResultsThe sample was clear, colorless and particle free upon dilution to 50 mL.

700

245

Microwave Digestion ofSilica Sand

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsH₂OHNO₃HF



NotesAdd HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides. The above procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric HF Neutralization” Reducing the particle size increase the efficiency of digestion and may decrease the digestion time.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 5 mL of H₂O, 3 mL of HNO₃, and 8 mL of HF. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



364

246

Microwave Digestion ofSilicon Dioxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 2 mL of HNO₃, and 8 mL of HF. Gently swirl the mixture before closing the vessel.


1 180 10:00 15:00 800 900-1050 Off



365

247

Microwave Digestion ofSilicon Nitride

GeoscienMARS 6




Sample TypeSolid

Heating Program


ReagentsHNO₃HF





ProcedureAdd 0.1 g of the sample into the digestion vessel. Add 1 mL of HNO₃ and 5 mL HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.



1 230 30:00 30:00 N/A 500-1800 Off



701

248

Microwave Digestion ofSilicon Wafer

GeoscienMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Piece (Approx 0.5 g)

ReagentsHNO₃HF




ProcedureAdd 1 piece (approx. 0.5 g) of the sample into the digestion vessel. Add 6 mL of HF and 3 mL of HNO3. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 180 10:00 15:00 800 900-1050 Off



366

249

Microwave Digestion ofSlag - Furnace

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF



NotesThe above procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric HF Neutralization” The addition of Conc. HCl (0-4mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 200 15:00 15:00 800 900-1050 Off



367

250

Microwave Digestion ofSodium Antimonate

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃HF






ProcedureWeigh 0.5 g of sample into the digestion vessel. Add 10 mL of HCl, 3 mL of HNO₃, and 2 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 30:00 15:00 N/A 900-1050 Off



702

251

Microwave Digestion ofSpodumene (Lithium Feldspar) (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃HF




ProcedureWeigh .25 g of the sample into the digestion vessel. Add 3 mL of HCl, 1 mL of HNO₃ and 4 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 200 15:00 20:00 800 900-1050 Off

252

Microwave Digestion ofSpodumene (Lithium Feldspar) (Step 2 of 2)

GeoscienMARS 6 (

ProcedureAllow vessel to cool after completion of Step 1. Open and add 30 mL of Deionized H₂O and 2 g H₃BO₃ (solid). Gently swirl the mixture and seal the vessel.

ReagentsDeionized H₂OH₃BO₃ (solid)

Notes

Heating Program



1 170 15:00 10:00 800 900-1050 Off



512

253

Microwave Digestion ofSulfide Bulk Concentrate (Step 1 of 2)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 30:00 20:00 N/A 900-1050 Off

254

Microwave Digestion ofSulfide Bulk Concentrate (Step 2 of 2)

GeoscienMARS 6 (

ProcedureProceeding step 1 add 5 mL of HCl, and 5 mL of Deionized Water. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

ReagentsHClDI H₂O


Heating Program



1 200 30:00 10:00 800 900-1050 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.


635

255

Microwave Digestion ofTantalum Pentoxide (O₅Ta₂)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF





ProcedureWeigh 0.5 g of sample into the digestion vessel. Add 3 mL of HNO₃, and 7 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 25:00 20:00 N/A 900-1050 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vesselsdetected.e) If using HF, follow restrictions listed in HF Addendum


707

256

Microwave Digestion ofTitanium Dioxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HF






1 210 15:00 15:00 800 900-1050 Off



489

257

Microwave Digestion ofTitanium Slag Ore

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF





ProcedureWeigh 0.25 g of sample into the digestion vessel. Add 5 mL of HNO₃, and 10 mL of HF. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing the vessel.

Reducing the particle size increases the efficiency of digestion and may decrease the digestion time.


1 240 30:00 20:00 N/A 900-1050 Off



708

258

Microwave Digestion ofTungsten Carbide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.25 g of the sample into the digestion vessel. Slowly add 5 mL of HNO₃, and 10 mL of HF. Gently swirl the mixture before closing the vessel.


1 220 20:00 20:00 800 900-1050 Off



369

259

Microwave Digestion ofTungsten Ore (50% W; 10% Fe; 2% Mn)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHF




ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 9 mL of HCl and 1 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 230 25:00 20:00 800 900-1050 Off



513

260

Microwave Digestion ofTungsten Oxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Slowly add 2 mL of HNO₃, and 7 mL of HF. Gently swirl the mixture before closing the vessel.


1 220 20:00 20:00 800 900-1050 Off



370

261

Microwave Digestion ofVermiculite

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF



NotesThis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.



1 200 15:00 15:00 800 900-1050 Off



514

262

Microwave Digestion ofWollastonite (Calcium Silicate)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsH₃PO₄HNO₃HBF₄




ProcedureWeigh 0.1 g of sample into the digestion vessel. Add 3 mL of H₃PO₄, 2 mL of HNO₃, and 3 mL of HBF₄. HBF₄ should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing the vessel.


1 230 30:00 30:00 N/A 900-1050 Off



711

263

Microwave Digestion ofZeolite

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF



NotesAdd HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides. The above procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric HF Neutralization”



1 210 15:00 15:00 800 900-1050 Off



371

264

Microwave Digestion ofZinc Oxide

GeoscienMARS 6


Method TypeClassic


Sample TypeOrganic

Heating Program


ReagentsHNO₃HF





ProcedureWeigh 0.1 g of the sample (onto a filter disk) into the digestion vessel. Add 5 mL HNO₃ and 2 mL HF. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 200 25:00 15:00 N/A 1500 Off



712

265

Microwave Digestion ofZinc Oxide (ZnO)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 5 mL of HNO₃ and 2 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



393

266

Microwave Digestion ofZircon

GeoscienMARS 6




Sample TypeStandard

Heating Program


ReagentsH₂SO₄HNO₃HF





ProcedureAdd 50 mg of the sample into the digestion vessel. Add 4 mL of H₂SO₄, 1.5 mL of HNO₃, and 1.5 mL HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.



1 270 40:00 30:00 N/A 500-1800 Off



713

267

Industrial Hygiene

268

Microwave Digestion ofAsbestos

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃HF



NotesHF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel. This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.3 g of the sample into the digestion vessel. Add 6 mL of HCl, 3 mL of HNO₃, and 3 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



492

269

Microwave Digestion ofFilter - 37 mm Mixed Cellulose Ester

Industrial MARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Filter (Approx 0.3 g)

ReagentsHNO₃




ProcedureWeigh 1 filter (approximately 0.3 g) into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



373

270

Microwave Digestion ofFilter - 47 mm Polycarbonate

Industrial MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



374

271

Microwave Digestion ofFilter Paper - Cellulose

Industrial MARS 6




Sample TypeOrganic

Heating Program


ReagentsH₂OHNO₃



NotesAdd H₂O before HNO₃. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 1 filter (approximately 0.9 g) of the sample into the digestion vessel. Add 5 mL of H₂O, and 5 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 180 15:00 10:00 800 900-1050 Off



372

272

Microwave Digestion ofGhost Wipe

Industrial MARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Wipe (Approx 2.5 g)

ReagentsHNO₃



NotesEnsure that the entire wipe is covered with reagent.

ProcedureWeigh 1 wipe (approx 2.5 g) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



375

273

Microwave Digestion ofPaint Chips (For Pb Analysis)

Industrial MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesHF may be required for a total dissolution.



1 200 15:00 10:00 800 900-1050 Off


ResultsSample was clear, colorless, with some remaining inorganic particles upon dilution to 50 mL.

399

274

Microwave Digestion ofQuartz Fiber Filters

Industrial MARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.35 g (1 filter)

ReagentsHNO₃HF

Recommended VesselsMARSXpressMARSXpress Plus


NotesThis method should not exceed 180 degrees celsius.

This application should only be completed using the 75 mL Xpress or 110 mL Xpress Plus vessels. It is not suitable for the smaller Xpress vessels (55 mL, 20 mL, or 10 mL).


ProcedureWeigh 1 filter (approximately 0.35 g) of the sample into the digestion vessel. Add 8 mL of HNO₃ and 2 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 180 20:00 15:00 N/A 1030-1800 Off


ResultsSamples were clear, colorless, and particle free upon dilution to 50 mL with deionized water.

727

275

Microwave Digestion ofToray Filter

Industrial MARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Filter (Approx 0.3 - 0.5 g)

ReagentsHNO₃




ProcedureWeigh 1 filter (approximately 0.3-0.5 g) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 260 20:00 20:00 N/A 500-1800 Off



376

276

Microwave Digestion ofToray Filter (Anion)

Industrial MARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Filter (Approx 0.3 - 0.5 g)

ReagentsHNO₃



Notes

ProcedureAdd 1 toray filter (Approx. 0.3 - 0.5 g) into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 20:00 300:00 800 900-1050 Off



561

277

Microwave Digestion ofToray Filter (Cation)

Industrial MARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Filter (Approx 0.3 -0.5 g)

ReagentsHNO₃



Notes

ProcedureAdd 1 toray filter (Approx. 0.3 - 0.5 g) into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 230 20:00 30:00 800 900-1050 Off



562

278

Materials Science

279

Microwave Digestion ofAcrylic Tape

Materials MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃DI H₂OHClHF





ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 3 mL of Deionized water, 7 mL of HNO₃, 1.5 mL of HCl, and 1 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 30:00 10:00 N/A 900-1800 Off



720

280

Microwave Digestion ofCircuit Board (Cryo - Ground)

Materials MARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃



NotesHCl should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel. This method is considered a leach and may not provide a total digestion.



1 200 15:00 15:00 800 900-1050 Off


ResultsSample was clear, with particles upon dilution to 50 mL.

377

281

Microwave Digestion ofGas Atomized Powder

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClHF







1 200 30:00 20:00 N/A 900-1800 Off


ResultsSamples were clear, green in color and particle free upon dilution to 50 mL.

721

282

Microwave Digestion ofGlass (Ground)

Materials MARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHFHNO₃






1 200 15:00 15:00 800 900-1050 Off



378

283

Microwave Digestion ofGraphite Composite - Cyanate Ester Resin

Materials MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1.5 g of the sample into the digestion vessel. Add 30 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 150 15:00 10:00 800 900-1050 Off



563

284

Microwave Digestion ofGraphite Composite - Epoxy Resin

Materials MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1.0 g of the sample into the digestion vessel. Add 30 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 150 10:00 10:00 800 900-1050 Off



564

285

Microwave Digestion ofGraphite Composite - PEEK Resin

Materials MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 160 15:00 10:00 800 900-1050 Off



565

286

Microwave Digestion ofGraphite Fiber - Cyanate Siloxane Resin

Materials MARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Laminate Square (Approx. 1 g)

ReagentsHNO₃



NotesSample must be completely covered with acid prior to digestion. After digestion the samples are filtered and the fibers are rinsed with deionized water. This method is for the gravimetric (weight) determination of fiber content.

ProcedureAdd 1 Laminate Square (Approx. 1 g) of the sample into the digestion vessel. Add 35 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 150 10:00 20:00 800 900-1050 Off


ResultsSample was digested, but the fiber filler material is left undigested for subsequent gravimetric analysis.

567

287

Microwave Digestion ofGraphite Fiber - Epoxy Resin (Fiber Content)

Materials MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesSample must be completely covered with acid prior to digestion.After digestion the samples are filtered and the graphite fibers are rinsed with deionized water.This method is for the gravimetric (weight) determination of fiber content.

ProcedureWeigh 1 g of the sample into the digestion vessel. Add 30 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 150 10:00 10:00 800 900-1050 Off


ResultsSample was digested, but the fiber filler material is left undigested for subsequent gravimetric analysis.

379

288

Metals and Alloys

289

Microwave Digestion ofAlpha - Alumina

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHCl




Ensure that particles are well suspended in acid mixture prior to sealing vessel.

Stirring may be helpful to keep particles suspended in solution during digestion.

ProcedureWeigh 0.5 g of sample into the digestion vessel. Add 10 mL HCl. Gently swirl the vessel to thoroughly mix the sample and acid.


1 240 30:00 60:00 N/A 1800 N/A



343

290

Microwave Digestion ofAluminum (Metal)

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHCl DI H₂O



NotesHCl should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 9 mL of HCl and 3 mL of DI H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



382

291

Microwave Digestion ofAluminum Alloy

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClH₂O



NotesAdd H₂O before HCl. Add HCl slowly, and allow vessels to stand in the fume hood until initial reaction subsides.

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 5 mL of H₂O and 5 mL of HCl .Gently swirl the mixture before closing the vessel.


1 190 10:00 15:00 800 900-1050 Off



381

292

Microwave Digestion ofAluminum Alloy (20% SiC)

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHF




ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 5 mL of HCl and 5 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 200 15:00 15:00 800 900-1050 Off



569

293

Microwave Digestion ofAluminum Alloy (BCS 182)

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClH₂O₂ (30%)HF




ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 20 mL of HCl, 10 mL of H₂O₂ (30%), and 5 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 200 10:00 15:00 800 900-1050 Off



568

294

Microwave Digestion ofAluminum Oxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program





NotesEasyPrep Plus requires a high temperature probe for this method. Ensure that particles are well suspended in acid mixture prior to sealing vessel. Stirring may be helpful to keep particles suspended in solution during digestion.

ProcedureWeigh 0.25 g of sample into the digestion vessel. Add 6.5 mL H₃PO₄ and 3.5 mL H₂SO₄. Gently swirl the vessel to thoroughly mix the sample and acid.


1 270 30:00 20:00 N/A 1800 N/A



344

295

Microwave Digestion ofBoron

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF






1 175 15:00 25:00 800 900-1050 Off



570

296

Microwave Digestion ofBoron Carbide (B₄C)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃H₂SO₄HF



NotesThis application can only be run in the iPrep vessel.This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed,an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “BoricAcid HF Neutralization”.Reducing the particle size increases the efficiency of digestion and may decrease the digestion time.

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 5 mL of HNO₃ and 5 mL of H₂SO₄. Gently swirl to mix the sample particles in the acid. Slowly and carefully add 5 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

Allow any initial reaction to subside before sealing vessel.


1 270 30:00 30:00 800 900-1800 Off



674

297

Microwave Digestion ofCarbonyl Iron

Metals anMARS 6




Sample TypeStandard

Heating Program


ReagentsHNO₃HClHBF₄



NotesThis application can only be run in the iPrep vessel. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 6 mL HNO₃, 2 mL HCl, and 1 mL HBF₄ slowly. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 30:00 20:00 N/A 500-1800 Off


ResultsSample was clear, yellow in color with no visible particles upon dilution to 50 mL.

678

298

Microwave Digestion ofCobalt - Chromium Alloy (Step 1 of 2)

Metals anMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃HFDI H₂O





ProcedureAdd 0.5 g of the sample into the digestion vessel. Add 5 mL of HNO₃, 5 mL of HF, and 5 mL of deionized H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off

299

Microwave Digestion ofCobalt - Chromium Alloy (Step 2 of 2)

Metals anMARS 6 (

ProcedureAllow vessels to cool. Open and add 4 mL of H2O2 (30%) dropwise. Wait approximately 15 minutes before closing the vessel.

ReagentsH₂O₂ (30%)

Notes

Heating Program



1 200 15:00 10:00 800 900-1050 Off



572

300

Microwave Digestion ofCopper (Metal)

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



384

301

Microwave Digestion ofCopper Ore

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃, HCl



NotesThis method is intended to be an acid leach, not a total digest. Hydrofluoric acid will be required to provide complete digestion of the sample matrix. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.5 g (0.25 g w/Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of Aqua Regia (3:1 HCl:HNO₃ ,). Gently swirl the mixture before closing the vessel.


1 180 15:00 10:00 800 900-1050 Off


ResultsSample was clear, and colorless with some remaining particles upon dilution to 50 mL.

383

302

Microwave Digestion ofGallium

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HF






1 180 15:00 15:00 800 900-1050 Off



573

303

Microwave Digestion ofIron - Chrome Alloy

Metals anMARS 6




Sample TypeStandard

Heating Program


ReagentsHClHFHNO₃



NotesThis application can only be run in the iPrep vessel.This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled "Boric Acid HF Neutralization".The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution.The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 5 mL of HCl, 5 mL of HF, and 5 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.



1 210 30:00 15:00 N/A 500-1800 Off



685

304

Microwave Digestion ofIron - Chromium Alloy (Step 1 of 2)

Metals anMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHClHFDI H₂O




The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureAdd 0.5 g of the sample into the digestion vessel. Add 5 mL of HCl, 5 mL of HF, and 2 mL of deionized H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.



1 200 15:00 15:00 800 900-1050 Off

305

Microwave Digestion ofIron - Chromium Alloy (Step 2 of 2)

Metals anMARS 6 (

ProcedureAllow vessels to cool. Open and add 5 mL of HNO₃. Wait approximately 15 minutes before closing the vessel.

ReagentsHNO₃

Notes

Heating Program



1 200 15:00 10:00 800 900-1050 Off



575

306

Microwave Digestion ofIron - Manganese Alloy

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHF




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HCl and 2 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 200 15:00 20:00 800 900-1050 Off



576

307

Microwave Digestion ofIron - Silicon Alloy

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HFHCl



Noteshis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HF, 5 mL HCl, and 3 mL HNO₃. Gently swirl the mixture and allow any initial reaction to subside before sealing vessel. HF should be added slowly and carefully to the sample.


1 200 15:00 15:00 800 900-1050 Off

General Precautiona) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.b) The control / reference vessel must contain the largest and most reactive sample.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.e) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.


577

308

Microwave Digestion ofIron Lignosulfonate

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 10:00 800 900-1050 Off



574

309

Microwave Digestion ofLead Sulfide (PbS)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 20:00 800 900-1050 Off



503

310

Microwave Digestion ofLithium Nickel Cobalt Manganese Oxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 210 20:00 10:00 N/A 1030-1800 Off


ResultsThe samples were clear, green in color, and particle free upon dilution.

724

311

Microwave Digestion ofManganous Oxide (MnO)

GeoscienMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.2g of the sample into the digestion vessel. Add 10 mL HNO₃ and 3 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 180 15:00 10:00 800 900-1050 Off

312

Microwave Digestion ofManganous Oxide (MnO)

GeoscienMARS 6 (

ProcedureAllow vessel to cool after completion of Step 1. Open and add 5 mL of HCl. Gently swirl the mixture and seal the vessel.

ReagentsHCl


Heating Program



1 180 15:00 10:00 800 900-1050 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) The control / reference vessel must contain the largest and most reactive sample.d) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.e) If programming as one touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.


505

313

Microwave Digestion ofMetal Alloy - FeCr

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHFHNO₃




ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 5 mL of HCl, 5 mL of HNO₃, and 5 mL of HF. Gently swirl the mixture before closing the vessel.


1 210 15:00 15:00 800 900-1050 Off



385

314

Microwave Digestion ofMetal Alloy - NiCr

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsH₂OHNO₃ HF




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 5 mL of H₂O, 5 mL of HNO₃, and 5 mL of HF. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



386

315

Microwave Digestion ofMetal Alloy (Ag, Au, Cu)

Metals anMARS 6


Method TypeClassic


Sample TypeOrganic

Heating Program


ReagentsHClHNO₃




This method may not provide a total digest of all samples. Hydrofluoric acid will be required to provide complete digestion of some sample matrices.

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 9 mL HCl, 1 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 220 25:00 25:00 N/A 1800 Off


ResultsSample was yellow in color, with some white particles remaining upon dilution to 50 mL.

686

316

Microwave Digestion ofMetal Alloy (Ag, Co, Cu)

Metals anMARS 6


Method TypeClassic


Sample TypeOrganic

Heating Program


ReagentsHNO₃Deionized H₂OHF





ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 3 mL HNO₃, 3 mL Deionized H₂O and 3 mL HF (in this order). Add HF slowly and carefully. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 220 25:00 25:00 N/A 1800 Off



687

317

Microwave Digestion ofMetal Alloy (Ag, Cu, Sn)

Metals anMARS 6


Method TypeClassic


Sample TypeOrganic

Heating Program


ReagentsHNO₃DI H₂OHF





ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 3 mL HNO₃, 3 mL Deionized Water, and 3 mL HF in this order. Add HF slowly and carefully. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 220 25:00 25:00 N/A 1800 Off



688

318

Microwave Digestion ofMetals Alloy - CoCr (Step 1 of 2)

Metals anMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃HFH2O



NotesThe addition of Deionized Water may improve solubility of metal alloys.This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 5 ml of HNO₃, 5 ml of HF, and 5 of ml H2O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

After heating program in step 1, allow vessel to cool before proceeding with step 2.


1 200 15:00 15:00 800 900-1050 Off

319

Microwave Digestion ofMetals Alloy - CoCr (Step 2 of 2)

Metals anMARS 6 (

ProcedureCool, vent and open vessel after step 1. Add 4 ml of H₂O₂, (30%)

ReagentsH₂O₂

Notes

Heating Program



1 200 10:00 10:00 800 900-1050 Off



602

320

Microwave Digestion ofNickel (II) Hydroxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 210 20:00 10:00 N/A 1030-1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain therequired results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at orbelow room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vesselsdetected.

ResultsThe samples were clear, light green in color, and particle free upon dilution.

725

321

Microwave Digestion ofNickel (Metal)

Metals anMARS 6




Sample TypeOrganic

Heating Program





Notes

ProcedureWeigh 0.5 g of sample into the digestion vessel. Add 5 mL of HNO₃ and 5 mL of DI H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



387

322

Microwave Digestion ofNiobium - Titanium Alloy

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHFHNO₃DI H₂O



Noteshis procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”. The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 1 mL of HF, 5 mL HNO₃, and 5 mL of deionized H₂O. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



578

323

Microwave Digestion ofPlatinum Iridium Wire

Metals anMARS 6




Sample TypeHCl

Heating Program


ReagentsHClHNO₃





ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 6 mL of HCl, and 2 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 250 35:00 120:00 N/A 500-1800 Off



693

324

Microwave Digestion ofPlatinum Metal

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl



Notes

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of Aqua Regia (3:1 HCl:HNO₃). Gently swirl the mixture before closing the vessel.


1 180 15:00 20:00 800 900-1050 Off



388

325

Microwave Digestion ofPlatinum Metal

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 6 mL of HCl, and 2 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before sealing vessel.


1 180 15:00 20:00 800 900-1050 Off



579

326

Microwave Digestion ofPlatinum Ruthenium

Metals anMARS 6




Sample TypeHCl

Heating Program


ReagentsHClHNO₃





ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 6 mL of HCl, and 2 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 240 30:00 60:00 N/A 500-1800 Off



694

327

Microwave Digestion ofPrecious Metal Ore (Step 1 of 2)

Metals anMARS 6 (




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HF




ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 10 mL of HNO₃, and 0.5 ml of HF. Gently swirl the mixture before closing the vessel.

After heating program in step 1, allow vessel to cool before proceeding with step 2.


1 200 15:00 20:00 800 900-1050 Off

328

Microwave Digestion ofPrecious Metal Ore (Step 2 of 2)

Metals anMARS 6 (

ProcedureCool, vent and open vessel after step 1. Add 5 ml of HCl.

ReagentsHCl


Heating Program



1 180 10:00 10:00 800 900-1050 Off



603

329

Microwave Digestion ofRhodium Sponge

Metals anMARS 6




Sample TypeHCl

Heating Program


ReagentsHClH₂O₂





ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 10 mL of HCl and 2 mL of H₂O₂ dropwise. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 250 25:00 45:00 N/A 500-1800 Off



697

330

Microwave Digestion ofSelenium Alloy

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 1 g (0.5 g w/Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



389

331

Microwave Digestion ofSn - Ag Solder

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsH₂OHNO₃HF



NotesCaution must be taken when adding the acid solution to the sample as the reaction is very vigorous and exothermic.Allow any initial reaction to subside before sealing the vessel.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Slowly add dropwise 10 ml of 1:1:1 H₂O:HNO₃:HF (premixed) to the sample. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 180 15:00 10:00 800 900-1050 Off



390

332

Microwave Digestion ofStainless and Low Carbon Steel

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl




ProcedureAdd 0.25 g of the sample into the digestion vessel. Add 3 mL of HNO₃, and 9 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 240 30:00 25:00 N/A 1800 Off


ResultsSample was clear, gold colored, and particle free upon dilution to 50 mL.

704

333

Microwave Digestion ofStainless Steel

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HFHCl




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 9 ml of HCl, 3 mL of HNO₃, and 3 mL of HF. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



391

334

Microwave Digestion ofSteel (Stainless)

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHNO₃



NotesThis method may not provide a total digest of all samples. Hydrofluoric acid will be required to provide complete digestion of some sample matrixes.



1 200 15:00 15:00 800 900-1050 Off



392

335

Microwave Digestion ofStrontium Ferrite

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHF





The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the

ProcedureWeigh 0.5 g of sample into the digestion vessel. Add 10 mL of HCl and 0.5 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 30:00 15:00 N/A 900-1050 Off



705

336

Microwave Digestion ofTitanium Alloy

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HFHCl






1 200 15:00 30:00 800 900-1050 Off



479

337

Microwave Digestion ofTitanium Dioxide

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HF






1 210 15:00 15:00 800 900-1050 Off



489

338

Microwave Digestion ofTungsten Ore (50% W; 10% Fe; 2% Mn)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHClHF




ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 9 mL of HCl and 1 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 230 25:00 20:00 800 900-1050 Off



513

339

Microwave Digestion ofZinc Oxide (ZnO)

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 5 mL of HNO₃ and 2 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.HF should be added slowly and carefully to the sample. Allow any initial reaction to subside before sealing vessel.


1 200 15:00 15:00 800 900-1050 Off



393

340

Microwave Digestion ofZircon Alloy

Metals anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHFHNO₃DI H₂O




ProcedureAdd 1.0 g of the sample into the digestion vessel. Add 5 mL of HF, 1 mL HNO₃, and 10 mL of deionized H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 200 15:00 10:00 800 900-1050 Off



580

341

Nutraceuticals

342

Microwave Digestion ofBiotin

NutraceutiMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 9 mL of HNO₃, and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 Off



394

343

Microwave Digestion ofCannabis (Plant)

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 10 mL of HNO₃, or alternatively 9 mL HNO₃, and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 20:00 10:00 800 900-1050 Off



715

344

Microwave Digestion ofChili Powder

Food TestMARS 6




Sample TypeStandard

Heating Program









1 240 30:00 30:00 N/A 500-1800 Off



680

345

Microwave Digestion ofGinkgo (Ground)

NutraceutiMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



395

346

Microwave Digestion ofGinkgo (Whole Pill)

NutraceutiMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Pill (Approx 1.0 g)





ProcedureWeigh 1 pill (approx 1.0 g) into the digestion vessel. Add 10 mL of HNO₃ and 2 mL of H₂O₂. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 15:00 15:00 800 900-1050 Off



396

347


Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureTransfer 2 mL of of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 210 30:00 20:00 N/A 500-1800 Off


Results Sample was clear, colorless and particle free upon dilution to 50 mL

301

348


Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureTransfer 1 mL (0.5 mL w/Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



302

349


Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 1 g of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 210 20:00 20:00 N/A 500-1800 Off



303

350


Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g (0.25 g w/Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



304

351

Microwave Digestion ofKelp

NutraceutiMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight 0.5 g

ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



421

352

Microwave Digestion ofMilk (Liquid) Whole

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



309

353

Microwave Digestion ofMilk Powder

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 20:00 15:00 800 900-1050 Off



310

354

Microwave Digestion ofPlant Tissue

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 off



234

355


EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



265

356

Microwave Digestion ofWheat

AgriculturMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



239

357

Microwave Digestion ofWhey Powder

Food TestMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 15:00 15:00 800 900-1050 Off



339

358

Organic Chemicals

359

Microwave Digestion ofDi-(2-ethylhexyl)phosphoric Acid

Organic CMARS 6




Sample TypeStandard

Heating Program


ReagentsHNO₃




ProcedureAdd 0.5 mL of the sample into the digestion vessel. Add 10 mL HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 220 30:00 15:00 N/A 500-1800 Off



682

360

Microwave Digestion ofDiazo Sulfonyl Chloride

Organic CMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



581

361

Microwave Digestion ofFood Dye (Erythrosine Based)

Organic CMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 210 15:00 15:00 800 900-1050 Off



582

362

Microwave Digestion ofMethylcellulose (Hydroxypropyl)

Organic CMARS 6




Sample TypeOrganic

Heating Program





Notes

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 10 mL of HNO₃ and 2 mL of deionized H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 180 15:00 15:00 800 900-1050 Off



583

363

Microwave Digestion ofMonoethanolamine

Organic CMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



584

364

Microwave Digestion ofPhotoresist

Organic CMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 210 15:00 15:00 800 900-1050 Off



398

365

Microwave Digestion ofPolygluteramide

Organic CMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 220 15:00 15:00 800 900-1050 Off



585

366

Paints and Coatings

367

Microwave Digestion ofPaint (Latex Based Liquid)

Paints anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesHF is required for a total dissolution of inorganic filler if present. If this procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled “Boric Acid HF Neutralization”.

ProcedureWeigh 1 g (0.5 g w/Xpress Vessels) of sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 200 15:00 10:00 800 900-1050 Off



400

368

Microwave Digestion ofPaint Chips (For Pb Analysis)

Industrial MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesHF may be required for a total dissolution.



1 200 15:00 10:00 800 900-1050 Off


ResultsSample was clear, colorless, with some remaining inorganic particles upon dilution to 50 mL.

399

369

Microwave Digestion ofPhotoresist

Organic CMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 210 15:00 15:00 800 900-1050 Off



398

370

Microwave Digestion ofPolyurethane

Paints anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl





ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 6 mL HNO₃, and 3 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 230 30:00 20:00 N/A 1800 Off



696

371

Microwave Digestion ofToner (Ink)

Paints anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis application can only be run in the iPrep vessel. The use of HF may be required to digest any silicates found in the sample.



1 240 20:00 20:00 N/A 500-1800 Off


ResultsSample was clear, colorless with some particles remaining upon dilution to 50 mL.

401

372

Microwave Digestion ofToner (Powder)

Paints anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃







1 240 30:00 20:00 N/A 500-1800 Off



709

373

1BQFS and 1VMQ

374

Microwave Digestion ofFilter - 37 mm Mixed Cellulose Ester

Industrial MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



373

375

Microwave Digestion ofFilter - 47 mm Polycarbonate

Industrial MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



374

376

Microwave Digestion ofFilter Paper - Cellulose

Industrial MARS 6




Sample TypeOrganic

Heating Program


ReagentsH₂OHNO₃



NotesAdd H₂O before HNO₃. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.

ProcedureWeigh 1 filter (approximately 0.9 g) of the sample into the digestion vessel. Add 5 mL of H₂O, and 5 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 180 15:00 10:00 800 900-1050 Off



372

377

Microwave Digestion ofPaper Pulp

Paper anMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



473

378

Personal Care (Health and Beauty)

379


AgriculturMARS 6




Sample TypeOrganic

Heating Program









1 170 15:00 15:00 800 900-1050 Off



6

380

Microwave Digestion ofCosmetics (Make-Up) Liquid

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 1 g of the sample into the digestion vessel. Add 8 mL of HNO₃ and 2 mL of HF. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



246

381

Microwave Digestion ofEye Shadow

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF






1 210 15:00 15:00 800 900-1050 Off



247

382

Microwave Digestion ofShampoo (Dandruff)

ConsumeMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



248

383

Pharmaceutical and Biotech

384

Microwave Digestion ofAllergy Pill (Ground)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



402

385

Microwave Digestion ofAllergy Pill (Whole Pill)

PharmaceMARS 6




Sample TypeOrganic

Heating Program






ProcedureWeigh 1 pill (Approx 1.0 g) into the digestion vessel. Add 10 mL of HNO₃ and 2 mL of H₂O₂ (30%). Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



403

386

Microwave Digestion ofAntioxidant (Ground)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



404

387

Microwave Digestion ofAntioxidant (Whole Pill)

PharmaceMARS 6




Sample TypeOrganic

Heating Program






ProcedureWeigh 1 pill (approx 1.4 g) into the digestion vessel. Add 10 mL of HNO₃ and 2 mL of H₂O₂ (30%). Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



405

388

Microwave Digestion ofAPIs with Aromatic Ring Structures

PharmaceMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.1 - 0.5 g

ReagentsHNO₃HCl




ProcedureWeigh 0.1 g - 0.5 g of the sample into the digestion vessel. Add 9 mL of HNO₃ and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 250 30:00 25:00 N/A 1800 N/A


ResultsSample was clear, colorless, and particle free upon dilution to 50 mL. If the sample contains precious metals the diluted sample may be the color associated with the metals.

406

389

Microwave Digestion ofAscorbic Acid

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



407

390

Microwave Digestion ofAspirin (Ground)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



408

391

Microwave Digestion ofAspirin (Whole)

PharmaceMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight 1 pill (Approx 1.0 g)

ReagentsHNO₃




ProcedureWeigh 1 pill (Approx 1.0 g) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



409

392

Microwave Digestion ofBeta Carotene

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



410

393

Microwave Digestion ofBiotin

NutraceutiMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



394

394

Microwave Digestion ofCalcium Carbonate

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl



NotesThe addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis. Allow initial reaction to subside before sealing vessel.

ProcedureWeigh 0.5 g of the sample into the digestion vessel. Slowly add 9 mL of HNO₃, and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 15:00 800 900-1050 Off



411

395

Microwave Digestion ofCalpan Pantothenic Acid

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



412

396

Microwave Digestion ofCephalexin

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



413

397

Microwave Digestion ofChromium Chelate

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off


Resultsample was clear, colorless, and particle free upon dilution to 50 mL.

414

398

Microwave Digestion ofCold and Flu Medicine (Liquid)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl




ProcedureAdd 0.75 mL of the sample into the digestion vessel. Add 9 mL of HNO₃ and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



415

399

Microwave Digestion ofCupric Sulfate

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off


ResultsSample was clear, blue in color, and particle free upon dilution to 50 mL.

416

400

Microwave Digestion ofDiclofenac K

PharmaceMARS 6




Sample TypeOrganic

Heating Program








1 200 15:00 15:00 800 900-1050 Off



417

401

Microwave Digestion ofEmpty Capsule (Gel)

PharmaceMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight1 Capsule (Approx 0.1 g)

ReagentsHNO₃




ProcedureWeigh 1 capsule (Approx 0.1 g) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



418

402

Microwave Digestion ofErythromycin

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 9 mL of HNO₃ and 1 mL HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



586

403

Microwave Digestion ofFish Oil (No Capsule)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



419

404

Microwave Digestion ofFlurbiprofen

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 200 15:00 15:00 800 900-1050 Off



587

405

Microwave Digestion ofFolic Acid

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



420

406

Microwave Digestion ofGinkgo (Ground)

NutraceutiMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



395

407

Microwave Digestion ofGinkgo (Whole Pill)

NutraceutiMARS 6




Sample TypeOrganic

Heating Program






ProcedureWeigh 1 pill (approx 1.0 g) into the digestion vessel. Add 10 mL of HNO₃ and 2 mL of H₂O₂. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 15:00 15:00 800 900-1050 Off



396

408

Microwave Digestion ofHydrocodone

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 220 25:00 15:00 800 900-1050 Off



588

409

Microwave Digestion ofIbuprofen (Ground)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.3 g of the sample into the digestion vessel. Add 8 mL HNO₃ and 2 mL HF. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 200 20:00 15:00 800 1030-1800 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) The control / reference vessel must contain the largest and most reactive sample.c) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.d) If programming as One Touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.e) If using HF, follow restrictions listed in HF Addendum


730

410

Microwave Digestion ofKelp

NutraceutiMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



421

411

Microwave Digestion ofLosartan K

PharmaceMARS 6




Sample TypeOrganic

Heating Program








1 200 15:00 15:00 800 900-1050 Off



422

412

Microwave Digestion ofMagnesium Carbonate

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl



NotesAllow any reaction to subside before sealing the vessel. The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 210 20:00 15:00 800 900-1050 Off



423

413

Microwave Digestion ofMagnesium Oxide

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



424

414

Microwave Digestion ofManganese Carbonate

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



426

415

Microwave Digestion ofMedroxyprogesterone

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



589

416

Microwave Digestion ofMetformin (Ground)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



427

417

Microwave Digestion ofMultivitamin (Ground)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



428

418

Microwave Digestion ofMultivitamin (Whole)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl




ProcedureWeigh 1 pill (Approx 2.5 g) into the digestion vessel. Add 10 mL of HNO₃ and 2 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



429

419

Microwave Digestion ofNaproxen Sodium

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HF






1 220 25:00 15:00 800 900-1050 Off



590

420

Microwave Digestion ofNiacinamide

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



430

421

Microwave Digestion ofPantothenic Acid

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



431

422

Microwave Digestion ofPotassium Chelate

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



432

423

Microwave Digestion ofProtopic Ointment

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 220 25:00 15:00 800 900-1050 Off



591

424

Microwave Digestion ofPyridoxine

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



434

425

Microwave Digestion ofRiboflavin

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 230 20:00 30:00 800 900-1050 Off



435

426

Microwave Digestion ofSelenium Chelate

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



436

427

Microwave Digestion ofSleep Aid

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HF






1 220 25:00 15:00 800 900-1050 Off



592

428

Microwave Digestion ofSodium Polystyrene Sulfonate

PharmaceMARS 6


Method TypeClassic


Sample TypeStandard

Heating Program


ReagentsDI H₂OHNO₃




ProcedureWeigh 0.3 g of the sample into the digestion vessel. Add 4.25 mL of HNO₃ and 2 mL of deionized H₂O. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 250 25:00 25:00 N/A 500-1800 Off



703

429

Microwave Digestion ofStearic Acid

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 210 15:00 15:00 800 900-1050 Off



437

430

Microwave Digestion ofSudan Orange (4-Fluorophenyl)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl





ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 9 mL of HNO₃ and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 250 25:00 25:00 N/A 1800 Off



706

431

Microwave Digestion ofThiamine

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



438

432

Microwave Digestion ofTransdermal Patch

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HClNH₄F



NotesThis procedure uses ammonium fluoride, which creates in-situ hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled "Boric Acid HF Neutralization". The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 9 mL of HNO₃, 1 mL of HCl, and 0.1 g of NH₄F. Gently swirtl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 20:00 30:00 800 900-1050 Off


ResultsCompleted samples were clear, colorless and particle free upon dilution to 50 mL.

593

433

Microwave Digestion ofTrixie Phosphate

PharmaceMARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.1 - 0.5 g

ReagentsHNO₃HCl





ProcedureWeigh 0.1 g of the sample into the digestion vessel. Add 4 mL of HNO₃ and 1 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 260 30:00 25:00 N/A 1800 Off



710

434


EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



265

435

Microwave Digestion ofVitamin B-12

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



439

436

Microwave Digestion ofVitamin C (Ground)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



440

437

Microwave Digestion ofVitamin C (Whole)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 1 pill (Approx 1.4 g) into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



441

438

Microwave Digestion ofVitamin Concentrate (High Fe)

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO3HCl




ProcedureWeigh 0.5 g of the sample into the digestion vessel. Add 5 mL of HNO3 and 5 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 180 15:00 10:00 800 900-1050 Off



519

439

Microwave Digestion ofVitamin D

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 210 20:00 15:00 800 900-1050 Off



442

440

Microwave Digestion ofVitamin D3

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



443

441

Microwave Digestion ofVitamin E

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃ HCl






1 230 20:00 30:00 800 900-1050 Off



444

442

Microwave Digestion ofVitamins

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HFHCl




ProcedureWeigh 0.5 g (0.25 g w/Xpress Vessels) of the sample into the digestion vessel. Add 9 mL of HNO₃, 1 mL HCl, and 1 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 15:00 30:00 800 900-1050 Off



445

443

Microwave Digestion ofZinc Sulfate

PharmaceMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl






1 200 15:00 15:00 800 900-1050 Off



446

444

Plastics, Polymers, and Oils

445

Microwave Digestion ofAcrylamide

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



447

446

Microwave Digestion ofBrominated Flame Retardant

Plastics, MARS 6


Method TypeClassic


Sample TypeStandard

Heating Program


ReagentsH₂SO₄HNO₃H₂O₂




Stirring is required for complete dissolution of this sample type.

ProcedureWeigh 50 mg of the sample into the digestion vessel. Insert stir bar into the vessel. Add 4.5 mL H₂SO₄ and 4.0 mL HNO₃ to the vessel, then add 1.5 mL H₂O₂ dropwise. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 270 30:00 45:00 N/A 500-1800 Med


ResultsSample was clear and colorless, and particle free upon dilution to 50 mL.

675

447

Microwave Digestion ofBunker Oil

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 210 15:00 15:00 800 900-1050 Off



450

448

Microwave Digestion ofBunker Oil

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis application can only be run in the iPrep vessel. The pre-digestion step will allow the lighter fuel fractions to react before sealing the vessels.



1 250 30:00 20:00 N/A 500-1800 Off



451

449

Microwave Digestion ofChar - Sulfuric Acid

GeoscienMARS 6




Sample TypeOrganic

Heating Program

Max Sample WeightVaries by sample

ReagentsH₂SO₄



NotesEasyPrep Plus requires a high temperature probe for this method. This method is for the pretreatment of large sample sizes or difficult organic samples that are resistant to oxidation. After the char is complete, the vessel is opened and a normal oxidation with HNO₃ can be run, usually at around 200C.

ProcedureAdd 5 mL H₂SO₄ into the vessel that contains the sample and acid. For EasyPrep vessels use 6 mL of H2SO4.


1 260 15:00 15:00 800 900-1050 Off



352

450

Microwave Digestion ofCrude Oil

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 210 15:00 15:00 800 900-1050 Off



452

451

Microwave Digestion ofDiesel Fuel

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe pre-digestion step will allow the lighter fuel fractions to react before sealing the vessels

ProcedureWeigh 0.25 g of the sample into the digestion vessel. Add 10 mL of HNO₃ . Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



357

452

Microwave Digestion ofEpoxy Hardener

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



453

453

Microwave Digestion ofFatty Alcohol

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl



Notes



1 200 15:00 15:00 800 900-1050 Off



454

454

Microwave Digestion ofFluorinated Ethylene Propylene (FEP)

Plastics, MARS 6


Method TypeClassic


Sample TypeOrganic

Heating Program


ReagentsH₂SO₄HNO₃H₂O₂




ProcedureWeigh 120 mg of the sample into the digestion vessel. Add 4.5 mL of H₂SO₄, 4 mL of HNO₃, and 1.5 mL of H₂O₂ slowly. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 280 30:00 30:00 N/A 1400 Off



717

455

Microwave Digestion ofFuel Oil (Slurry) (Step 1 of 2)

Plastics, MARS 6 (




Sample TypeStandard

Heating Program


ReagentsHNO₃ HF



NotesThis application can only be run in the iPrep vessel.This procedure uses hydrofluoric acid. If it is necessary to complex the residual hydrofluoric acid or redissolve insoluble fluorides formed, an additional complexation step with boric acid should be used. This procedure can be found in the One Touch Method note entitled "Boric Acid HF Neutralization".




1 250 30:00 30:00 N/A 500-1800 Off

456

Microwave Digestion ofFuel Oil (Slurry) (Step 2 of 2)

Plastics, MARS 6 (

ProcedureAllow vessels to cool. Open and add 2 mL H₂O₂ (30%) dropwise. Wait approximately 15 minutes before closing the vessel.

ReagentsH₂O₂ (30%)

Notes

Heating Program



1 210 30:00 30:00 N/A 500-1800 Off



650

457

Microwave Digestion ofGasoline

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureAdd 0.1 g of the sample into the digestion vessel. Slowly add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



455

458

Microwave Digestion ofGlycerol Ester of Wood Rosin (Ground)

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g (ground) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to predigest before closing the vessel.


1 220 30:00 30:00 N/A 700-1800 Off


ResultsSample was clear, colorless, and particle free upon dilution to 50 mL with deionized water.

684

459

Microwave Digestion ofHDPE

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 210 15:00 15:00 800 900-1050 Off



456

460

Microwave Digestion ofKerosene

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 200 15:00 15:00 800 900-1050 Off



359

461

Microwave Digestion ofKevlar

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis application can only be run in the iPrep vessel. Ensure that all fibers are completely covered with acid and not adhered to the vessel liner wall.



1 250 30:00 20:00 N/A 500-1800 Off



457

462

Microwave Digestion ofLube Oil

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



458

463

Microwave Digestion ofMethyl Ester of Hydrogenated Wood Rosin (Ground)

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.5 g (ground) of the sample into the digestion vessel. Add 10 mL of HNO₃ . Gently swirl the mixture and wait approximately 15 minutes to predigest before closing the vessel.


1 220 30:00 30:00 N/A 700-1800 Off



689

464

Microwave Digestion ofMineral Oil

GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



459

465


GeoscienMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃




ProcedureWeigh 0.25 g (0.1 g w/Xpress Vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



360

466


Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis application can only be run in the iPrep vessel. The pre-digestion step will allow the lighter fuel fractions to react before sealing the vessels.



1 240 30:00 20:00 N/A 500-1800 Off



461

467

Microwave Digestion ofMotor Oil (New)

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



460

468

Microwave Digestion ofNylon

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



462

469

Microwave Digestion ofPET

Plastics, MARS 6




Sample TypeOrganic

Heating Program





Notes

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 8 mL of HNO₃ and 2 mL of H₂SO₄. Gently swirl the mixture before closing the vessel.


1 230 15:00 15:00 800 900-1050 Off



463

470

Microwave Digestion ofPET (Polyethylene Terephthalate)

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃






1 250 30:00 20:00 N/A 500-1800 Off



464

471

Microwave Digestion ofPetrolatum

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



594

472

Microwave Digestion ofPetroleum Based Wax

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



595

473

Microwave Digestion ofPlasticizer (Filter)

Plastics, MARS 6


Method TypeClassic


Sample TypeOrganic

Heating Program


ReagentsHNO₃HCl




ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 6 mL HNO₃, and 3 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes to pre-digest before closing the vessel.


1 230 15:00 20:00 N/A 1800 Off



691

474

Microwave Digestion ofPlasticizers

Plastics, MARS 6




Sample TypeStandard

Heating Program


ReagentsHNO₃HCl




The addition of Conc. HCl (0-4 mL) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution.The amount of HCl will vary depending on the matrix and the concentration of the analytes.

ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 6 mL HNO₃ and 3 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 230 30:00 20:00 N/A 500-1800 Off



692

475

Microwave Digestion ofPolycarbonate Resin (Step 1 of 2)

Plastics, MARS 6 (




Sample TypeOrganic

Heating Program


ReagentsH₂SO₄



NotesEasy Prep Plus requires a high temperature probe for this method.

ProcedureChar StepWeigh 1.0 g of the sample into the digestion vessel. Add 6 mL of H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 260 15:00 15:00 800 900-1050 Off

476

Microwave Digestion ofPolycarbonate Resin (Step 2 of 2)

Plastics, MARS 6 (

ProcedureProceeding step one, add 10 mL of HNO3. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

ReagentsHNO₃

Notes

Heating Program



1 210 15:00 15:00 800 900-1050 Off



491

477

Microwave Digestion ofPolycarbonate Resin

Plastics, MARS 6 (




Sample TypeOrganic

Heating Program


ReagentsH₂SO₄



NotesEasy Prep Plus requires a high temperature probe for this method.

ProcedureChar Step Weigh 1.0 g of the sample into the digestion vessel. Add 6 mL of H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 260 15:00 15:00 800 900-1050 Off

478

Microwave Digestion ofPolycarbonate Resin

Plastics, MARS 6 (

ProcedureProceeding step one, add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.

ReagentsHNO₃

Notes

Heating Program



1 210 15:00 15:00 800 900-1050 Off

General Precautiona) This procedure is a reference point for sample digestion using a CEM system and may need to be modified or changed to obtain the required results on your sample.b) If using a vessel other than the recommended choice, adjust sample size and pressure limit to values appropriate for the vessel chosen.c) The control / reference vessel must contain the largest and most reactive sample.d) Manual venting of CEM vessels should be performed when wearing hand/eye/body protection and when the vessel contents are at or below room temperature to avoid the potential for chemical burns. Always point the vent hole away from the operator.e) If programming as one touch, the ramp time and power will be automatically determined based on the number and type of vessels detected.


604

479

Microwave Digestion ofPolyethersulfone (Filter Paper)

Plastics, MARS 6




Sample TypeOrganic

Heating Program





Notes

ProcedureWeigh 1 filter paper (Approx 0.1 g) into the digestion vessel. Add 8 mL of HNO₃ and 2 mL H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 230 15:00 15:00 800 900-1050 Off



465

480

Microwave Digestion ofPolyethylene - High Density

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.25 g (0.1 g w/Xpress Vessels) of the sample into the digestion vessel. Add 10 ml of HNO₃. Gently swirl the mixture before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



466

481

Microwave Digestion ofPolyphenylene Sulfide

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



596

482

Microwave Digestion ofPolypropylene

Plastics, MARS 6




Sample TypeOrganic

Heating Program

Max Sample Weight0.25 g (0.1 g w/Xpress)

ReagentsHNO₃



Notes

ProcedureWeigh 0.25 (0.1 g w/Xpress vessels) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 210 15:00 15:00 800 900-1050 Off



467

483

Microwave Digestion ofPolyterpene Resin

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThis application can only be run in an iPrep.

ProcedureWeigh 0.5 g (ground) of the sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture and wait approximately 15 minutes to predigest before closing the vessel.


1 220 30:00 30:00 N/A 700-1800 Off



695

484

Microwave Digestion ofPolyurethane

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



468

485

Microwave Digestion ofPVC (Polyvinyl Chloride Resin)

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes

ProcedureWeigh 0.25 g (0.1 g w/Xpress Vessels) of sample into the digestion vessel. Add 10 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 210 15:00 15:00 800 900-1050 Off



469

486

Microwave Digestion ofRubber

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 220 15:00 15:00 800 900-1050 Off



471

487

Microwave Digestion ofRubber (Synthetic)

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 210 15:00 15:00 800 900-1050 Off



470

488

Microwave Digestion ofSilane Terminated Polyether

Plastics, MARS 6




Sample TypeStandard

Heating Program


ReagentsHNO₃HCl





ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 6 mL HNO₃ and 3 mL of HCl. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 230 30:00 20:00 N/A 500-1800 Off



699

489

Microwave Digestion ofSilicone Tubing - TiO₂ Filler

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃HF




ProcedureWeigh 0.2 g of the sample into the digestion vessel. Add 2 mL HNO₃ and 5 mL of HF. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel. Add HF slowly, and allow vessels to stand in the fume hood until the initial reaction subsides.


1 200 15:00 15:00 800 900-1050 Off



557

490

Microwave Digestion ofStyrene Acrylate

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



597

491

Microwave Digestion ofTerephthalic Acid

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 230 15:00 15:00 800 900-1050 Off



472

492

Microwave Digestion ofWear Metals in Oil

Plastics, MARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



Notes



1 200 15:00 15:00 800 900-1050 Off



598

493

Water and Wastewater Treatment

494

Microwave Digestion ofNPDES (Waste Water)

EnvironmMARS 6




Sample TypeWater

Heating Program


ReagentsHNO₃ HCl

Recommended Vessels75 mL MARSXpressEasyPrepEasyPrep PlusMARSXpress Plus



ProcedureTransfer 50 mL of the sample into the digestion vessel. Add 3 mL of HNO₃, and 2 mL HCl. Gently swirl the mixture before closing the vessel.


1 165 30:00 0:00 800 900-1050 Off



252

495

Microwave Digestion ofSludge (Industrial)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsHNO₃



NotesThe use of HF may be required to digest any silicates found in the sample. The addition of Conc. HCl (0-4 ml) is appropriate for the stabilization of Ag, Ba and Sb, and high concentrations of Fe and Al in solution. The amount of HCl will vary depending on the matrix and the concentration of the analytes. The addition of HCl may, however, limit the techniques or increase the difficulties of analysis.



1 200 15:00 15:00 800 900-1050 Off



257

496

Microwave Digestion ofTCLP Extract

EnvironmMARS 6




Sample TypeWater

Heating Program


ReagentsHNO₃



Notes

ProcedureTransfer 25 mL of the sample into the digestion vessel. Add 5 mL of HNO₃. Gently swirl the mixture before closing the vessel. If a high organic content is suspected, a 10 ml sample volume is recommended.


1 170 10:00 10:00 800 900-1050 Off



259

497

Microwave Digestion ofUS EPA 3015 (Aqueous Samples)

EnvironmMARS 6




Sample TypeWater

Heating Program


ReagentsHNO₃



Notes

ProcedureTransfer 45 mL of the sample into the digestion vessel. Add 5 mL of HNO₃. Gently swirl the mixture before closing the vessel.


1 170 10:00 10:00 800 900-1050 Off



260

498

Microwave Digestion ofUS EPA 3015a (Aqueous Sample)

EnvironmMARS 6




Sample TypeWater

Heating Program






ProcedureTransfer 45 mL of the sample into the digestion vessel. Add 5 mL of HNO3, or alternatively 4 mL of HNO₃ and 1 mL HCl. Gently swirl the mixture before closing the vessel.


1 170 10:00 10:00 800 900-1050 Off



261

499

Microwave Digestion ofWaste Activated Sludge

EnvironmMARS 6




Sample TypeOrganic

Heating Program





Notes

ProcedureWeigh 0.5 g dry weight (0.25 g w/Xpress Vessels) of the sample into the digestion vessel. Add 5 mL of HNO₃, and 5 mL of H₂O₂. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 200 15:00 15:00 800 900-1050 Off



266

500

Microwave Digestion ofWater (For Analysis of Phosphorous)

EnvironmMARS 6




Sample TypeOrganic

Heating Program


ReagentsK₂S₂O₈ H₂SO₄


Recommended EquipmentMARS 6

Notes

ProcedureWeigh 50 mL of H₂O into the digestion vessel. Add 0.5 g of K₂S₂O₈ and 1 mL of H₂SO₄. Gently swirl the mixture and wait approximately 15 minutes before closing the vessel.


1 170 15:00 15:00 800 900-1050 Off



267

501

Documents

Microwave Digestion System Method Note Compendiumcem.com/media/contenttype/media/literature/MetNote_MARS6_Com… · Compendium Updated February 1, 2019. Agriculture Alfalfa2 Boric