1 s9_esipos_all_pest_18Dec.docx

Supporting Figure S9. Stability of Pesticides in Reagent Water—LC-MS/MS Positive ESI Analytes

Recovery of pesticides in reagent water after storage for as many as 28 days with different treatments (none, 4 degrees Celsius [°C]; none, -10°C; citric acid pH 3.8, 4°C; ascorbic acid, 4°C) determined by direct aqueous-injection liquid chromatography-tandem mass spectrometry (LC-MS/MS) in positive electrospray ionization (ESI+) mode. Dashed lines show study objectives of 100±30 percent recovery. Dotted line shows lower tolerable range for holding time based on standard deviation of continuing calibration verification (CCV) standards (n=28) analyzed with stability samples (ASTM, 2008).

Acetanilide and Amide Acetochlor none 4°C

Acetochlor none -10°C

Acetochlor citric 4°C

Acetochlor ascorbic 4°C

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Alachlor none 4°C

Alachlor none -10°C

Alachlor citric 4°C

Alachlor ascorbic 4°C

3 s9_esipos_all_pest_18Dec.docx

Dimethenamid none 4°C

Dimethenamid none -10°C

Dimethenamid citric 4°C

Dimethenamid ascorbic 4°C

4 s9_esipos_all_pest_18Dec.docx

Metolachlor none 4°C

Metolachlor none -10°C

Metolachlor citric 4°C

Metolachlor ascorbic 4°C

5 s9_esipos_all_pest_18Dec.docx

Pronamide none 4°C

Pronamide none -10°C

Pronamide citric 4°C

Pronamide ascorbic 4°C

6 s9_esipos_all_pest_18Dec.docx

Propanil none 4°C

Propanil none -10°C

Propanil citric 4°C

Propanil ascorbic 4°C

7 s9_esipos_all_pest_18Dec.docx

Carbamate and Thiocarbamate Aldicarb none 4°C

Aldicarb none -10°C

Aldicarb citric 4°C

Aldicarb ascorbic 4°C

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Asulam none 4°C

Asulam none -10°C

Asulam citric 4°C

Asulam ascorbic 4°C

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Butylate none 4°C

Butylate none -10°C

Butylate citric 4°C

Butylate ascorbic 4°C

10 s9_esipos_all_pest_18Dec.docx

Carbaryl none 4°C

Carbaryl none -10°C

Carbaryl citric 4°C

Carbaryl ascorbic 4°C

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Carbofuran none 4°C

Carbofuran none -10°C

Carbofuran citric 4°C

Carbofuran ascorbic 4°C

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EPTC none 4°C

EPTC none -10°C

EPTC citric 4°C

EPTC ascorbic 4°C

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Formetanate none 4°C

Formetanate none -10°C

Formetanate citric 4°C

Formetanate ascorbic 4°C

14 s9_esipos_all_pest_18Dec.docx

Methomyl none 4°C

Methomyl none -10°C

Methomyl citric 4°C

Methomyl ascorbic 4°C

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Molinate none 4°C

Molinate none -10°C

Molinate citric 4°C

Molinate ascorbic 4°C

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Oxamyl none 4°C

Oxamyl none -10°C

Oxamyl citric 4°C

Oxamyl ascorbic 4°C

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Propoxur none 4°C

Propoxur none -10°C

Propoxur citric 4°C

Propoxur ascorbic 4°C

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Thiobencarb none 4°C

Thiobencarb none -10°C

Thiobencarb citric 4°C

Thiobencarb ascorbic 4°C

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Triallate none 4°C

Triallate none -10°C

Triallate citric 4°C

Triallate ascorbic 4°C

20 s9_esipos_all_pest_18Dec.docx

Fungicide Azoxystrobin none 4°C

Azoxystrobin none -10°C

Azoxystrobin citric 4°C

Azoxystrobin ascorbic 4°C

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Famoxadone none 4°C

Famoxadone none -10°C

Famoxadone citric 4°C

Famoxadone ascorbic 4°C

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Fentin none 4°C

Fentin none -10°C

Fentin citric 4°C

Fentin ascorbic 4°C

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Kresoxim-methyl none 4°C

Kresoxim-methyl none -10°C

Kresoxim-methyl citric 4°C

Kresoxim-methyl ascorbic 4°C

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Metalaxyl none 4°C

Metalaxyl none -10°C

Metalaxyl citric 4°C

Metalaxyl ascorbic 4°C

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Metconazole none 4°C

Metconazole none -10°C

Metconazole citric 4°C

Metconazole ascorbic 4°C

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Myclobutanil none 4°C

Myclobutanil none -10°C

Myclobutanil citric 4°C

Myclobutanil ascorbic 4°C

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Propiconazole none 4°C

Propiconazole none -10°C

Propiconazole citric 4°C

Propiconazole ascorbic 4°C

28 s9_esipos_all_pest_18Dec.docx

Pyraclostrobin none 4°C

Pyraclostrobin none -10°C

Pyraclostrobin citric 4°C

Pyraclostrobin ascorbic 4°C

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Tebuconazole none 4°C

Tebuconazole none -10°C

Tebuconazole citric 4°C

Tebuconazole ascorbic 4°C

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Tetraconazole none 4°C

Tetraconazole none -10°C

Tetraconazole citric 4°C

Tetraconazole ascorbic 4°C

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Trifloxystrobin none 4°C

Trifloxystrobin none -10°C

Trifloxystrobin citric 4°C

Trifloxystrobin ascorbic 4°C

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Miscellaneous Aminopyralid none 4°C

Aminopyralid none -10°C

Aminopyralid citric 4°C

Aminopyralid ascorbic 4°C

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Bifenazate none 4°C

Bifenazate none -10°C

Bifenazate citric 4°C

Bifenazate ascorbic 4°C

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Bromacil none 4°C

Bromacil none -10°C

Bromacil citric 4°C

Bromacil ascorbic 4°C

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Butralin none 4°C

Butralin none -10°C

Butralin citric 4°C

Butralin ascorbic 4°C

36 s9_esipos_all_pest_18Dec.docx

Etoxazole none 4°C

Etoxazole none -10°C

Etoxazole citric 4°C

Etoxazole ascorbic 4°C

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Fenbutatin oxide none 4°C

Fenbutatin oxide none -10°C

Fenbutatin oxide citric 4°C

Fenbutatin oxide ascorbic 4°C

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Flumetsulam none 4°C

Flumetsulam none -10°C

Flumetsulam citric 4°C

Flumetsulam ascorbic 4°C

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Flumiclorac none 4°C

Flumiclorac none -10°C

Flumiclorac citric 4°C

Flumiclorac ascorbic 4°C

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Imazamox none 4°C

Imazamox none -10°C

Imazamox citric 4°C

Imazamox ascorbic 4°C

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Imazaquin none 4°C

Imazaquin none -10°C

Imazaquin citric 4°C

Imazaquin ascorbic 4°C

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Imazethapyr none 4°C

Imazethapyr none -10°C

Imazethapyr citric 4°C

Imazethapyr ascorbic 4°C

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Imidacloprid none 4°C

Imidacloprid none -10°C

Imidacloprid citric 4°C

Imidacloprid ascorbic 4°C

44 s9_esipos_all_pest_18Dec.docx

Indoxacarb none 4°C

Indoxacarb none -10°C

Indoxacarb citric 4°C

Indoxacarb ascorbic 4°C

45 s9_esipos_all_pest_18Dec.docx

Isoxaflutole none 4°C

Isoxaflutole none -10°C

Isoxaflutole citric 4°C

Isoxaflutole ascorbic 4°C

46 s9_esipos_all_pest_18Dec.docx

Lactofen none 4°C

Lactofen none -10°C

Lactofen citric 4°C

Lactofen ascorbic 4°C

47 s9_esipos_all_pest_18Dec.docx

Methoxyfenozide none 4°C

Methoxyfenozide none -10°C

Methoxyfenozide citric 4°C

Methoxyfenozide ascorbic 4°C

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Norflurazon none 4°C

Norflurazon none -10°C

Norflurazon citric 4°C

Norflurazon ascorbic 4°C

49 s9_esipos_all_pest_18Dec.docx

Oxyfluorfen none 4°C

Oxyfluorfen none -10°C

Oxyfluorfen citric 4°C

Oxyfluorfen ascorbic 4°C

50 s9_esipos_all_pest_18Dec.docx

Pendimethalin none 4°C

Pendimethalin none -10°C

Pendimethalin citric 4°C

Pendimethalin ascorbic 4°C

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Propargite none 4°C

Propargite none -10°C

Propargite citric 4°C

Propargite ascorbic 4°C

52 s9_esipos_all_pest_18Dec.docx

Pymetrozine none 4°C

Pymetrozine none -10°C

Pymetrozine citric 4°C

Pymetrozine ascorbic 4°C

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Pyridaben none 4°C

Pyridaben none -10°C

Pyridaben citric 4°C

Pyridaben ascorbic 4°C

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Pyriproxyfen none 4°C

Pyriproxyfen none -10°C

Pyriproxyfen citric 4°C

Pyriproxyfen ascorbic 4°C

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Tebufenozide none 4°C

Tebufenozide none -10°C

Tebufenozide citric 4°C

Tebufenozide ascorbic 4°C

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Terbacil none 4°C

Terbacil none -10°C

Terbacil citric 4°C

Terbacil ascorbic 4°C

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Organophosphate Acephate none 4°C

Acephate none -10°C

Acephate citric 4°C

Acephate ascorbic 4°C

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Azinphos-methyl none 4°C

Azinphos-methyl none -10°C

Azinphos-methyl citric 4°C

Azinphos-methyl ascorbic 4°C

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Chlorpyrifos none 4°C

Chlorpyrifos none -10°C

Chlorpyrifos citric 4°C

Chlorpyrifos ascorbic 4°C

60 s9_esipos_all_pest_18Dec.docx

Diazinon none 4°C

Diazinon none -10°C

Diazinon citric 4°C

Diazinon ascorbic 4°C

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Dicrotophos none 4°C

Dicrotophos none -10°C

Dicrotophos citric 4°C

Dicrotophos ascorbic 4°C

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Dimethoate none 4°C

Dimethoate none -10°C

Dimethoate citric 4°C

Dimethoate ascorbic 4°C

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Disulfoton none 4°C

Disulfoton none -10°C

Disulfoton citric 4°C

Disulfoton ascorbic 4°C

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Ethoprop none 4°C

Ethoprop none -10°C

Ethoprop citric 4°C

Ethoprop ascorbic 4°C

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Fenamiphos none 4°C

Fenamiphos none -10°C

Fenamiphos citric 4°C

Fenamiphos ascorbic 4°C

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Fonofos none 4°C

Fonofos none -10°C

Fonofos citric 4°C

Fonofos ascorbic 4°C

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Malathion none 4°C

Malathion none -10°C

Malathion citric 4°C

Malathion ascorbic 4°C

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Methamidophos none 4°C

Methamidophos none -10°C

Methamidophos citric 4°C

Methamidophos ascorbic 4°C

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Methidathion none 4°C

Methidathion none -10°C

Methidathion citric 4°C

Methidathion ascorbic 4°C

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Naled none 4°C

Naled none -10°C

Naled citric 4°C

Naled ascorbic 4°C

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Parathion-methyl none 4°C

Parathion-methyl none -10°C

Parathion-methyl citric 4°C

Parathion-methyl ascorbic 4°C

72 s9_esipos_all_pest_18Dec.docx

Phorate none 4°C

Phorate none -10°C

Phorate citric 4°C

Phorate ascorbic 4°C

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Phosmet none 4°C

Phosmet none -10°C

Phosmet citric 4°C

Phosmet ascorbic 4°C

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Profenofos none 4°C

Profenofos none -10°C

Profenofos citric 4°C

Profenofos ascorbic 4°C

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Tebupirimfos none 4°C

Tebupirimfos none -10°C

Tebupirimfos citric 4°C

Tebupirimfos ascorbic 4°C

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Terbufos none 4°C

Terbufos none -10°C

Terbufos citric 4°C

Terbufos ascorbic 4°C

77 s9_esipos_all_pest_18Dec.docx

Tribuphos none 4°C

Tribuphos none -10°C

Tribuphos citric 4°C

Tribuphos ascorbic 4°C

78 s9_esipos_all_pest_18Dec.docx

Pyrethroid & Phenylpyrazine Bifenthrin none 4°C

Bifenthrin none -10°C

Bifenthrin citric 4°C

Bifenthrin ascorbic 4°C

79 s9_esipos_all_pest_18Dec.docx

cis-Permethrin none 4°C

cis-Permethrin none -10°C

cis-Permethrin citric 4°C

cis-Permethrin ascorbic 4°C

80 s9_esipos_all_pest_18Dec.docx

trans-Permethrin none 4°C

trans-Permethrin none -10°C

trans-Permethrin citric 4°C

trans-Permethrin ascorbic 4°C

81 s9_esipos_all_pest_18Dec.docx

Piperonyl butoxide none 4°C

Piperonyl butoxide none -10°C

Piperonyl butoxide citric 4°C

Piperonyl butoxide ascorbic 4°C

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Sulfonylurea & Urea Chlorimuron-ethyl none 4°C

Chlorimuron-ethyl none -10°C

Chlorimuron-ethyl citric 4°C

Chlorimuron-ethyl ascorbic 4°C

83 s9_esipos_all_pest_18Dec.docx

Chlorsulfuron none 4°C

Chlorsulfuron none -10°C

Chlorsulfuron citric 4°C

Chlorsulfuron ascorbic 4°C

84 s9_esipos_all_pest_18Dec.docx

Diflubenzuron none 4°C

Diflubenzuron none -10°C

Diflubenzuron citric 4°C

Diflubenzuron ascorbic 4°C

85 s9_esipos_all_pest_18Dec.docx

Diuron none 4°C

Diuron none -10°C

Diuron citric 4°C

Diuron ascorbic 4°C

86 s9_esipos_all_pest_18Dec.docx

Fluometuron none 4°C

Fluometuron none -10°C

Fluometuron citric 4°C

Fluometuron ascorbic 4°C

87 s9_esipos_all_pest_18Dec.docx

Halosulfuron-methyl none 4°C

Halosulfuron-methyl none -10°C

Halosulfuron-methyl citric 4°C

Halosulfuron-methyl ascorbic 4°C

88 s9_esipos_all_pest_18Dec.docx

Linuron none 4°C

Linuron none -10°C

Linuron citric 4°C

Linuron ascorbic 4°C

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Nicosulfuron none 4°C

Nicosulfuron none -10°C

Nicosulfuron citric 4°C

Nicosulfuron ascorbic 4°C

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Novaluron none 4°C

Novaluron none -10°C

Novaluron citric 4°C

Novaluron ascorbic 4°C

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Orthosulfamuron none 4°C

Orthosulfamuron none -10°C

Orthosulfamuron citric 4°C

Orthosulfamuron ascorbic 4°C

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Prosulfuron none 4°C

Prosulfuron none -10°C

Prosulfuron citric 4°C

Prosulfuron ascorbic 4°C

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Siduron none 4°C

Siduron none -10°C

Siduron citric 4°C

Siduron ascorbic 4°C

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Sulfometuron-methyl none 4°C

Sulfometuron-methyl none -10°C

Sulfometuron-methyl citric 4°C

Sulfometuron-methyl ascorbic 4°C

95 s9_esipos_all_pest_18Dec.docx

Sulfosulfuron none 4°C

Sulfosulfuron none -10°C

Sulfosulfuron citric 4°C

Sulfosulfuron ascorbic 4°C

96 s9_esipos_all_pest_18Dec.docx

Tebuthiuron none 4°C

Tebuthiuron none -10°C

Tebuthiuron citric 4°C

Tebuthiuron ascorbic 4°C

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Triazine Ametryn none 4°C

Ametryn none -10°C

Ametryn citric 4°C

Ametryn ascorbic 4°C

98 s9_esipos_all_pest_18Dec.docx

Atrazine none 4°C

Atrazine none -10°C

Atrazine citric 4°C

Atrazine ascorbic 4°C

99 s9_esipos_all_pest_18Dec.docx

Cyanazine none 4°C

Cyanazine none -10°C

Cyanazine citric 4°C

Cyanazine ascorbic 4°C

100 s9_esipos_all_pest_18Dec.docx

Hexazinone none 4°C

Hexazinone none -10°C

Hexazinone citric 4°C

Hexazinone ascorbic 4°C

101 s9_esipos_all_pest_18Dec.docx

Metribuzin none 4°C

Metribuzin none -10°C

Metribuzin citric 4°C

Metribuzin ascorbic 4°C

102 s9_esipos_all_pest_18Dec.docx

Prometon none 4°C

Prometon none -10°C

Prometon citric 4°C

Prometon ascorbic 4°C

103 s9_esipos_all_pest_18Dec.docx

Prometryn none 4°C

Prometryn none -10°C

Prometryn citric 4°C

Prometryn ascorbic 4°C

104 s9_esipos_all_pest_18Dec.docx

Propazine none 4°C

Propazine none -10°C

Propazine citric 4°C

Propazine ascorbic 4°C

105 s9_esipos_all_pest_18Dec.docx

Simazine none 4°C

Simazine none -10°C

Simazine citric 4°C

Simazine ascorbic 4°C

106 s9_esipos_all_pest_18Dec.docx

Terbuthylazine none 4°C

Terbuthylazine none -10°C

Terbuthylazine citric 4°C

Terbuthylazine ascorbic 4°C