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Picarro's Combustion Module - Cavity Ring-Down Spectroscopy (CRDS) platform can run automated stable isotope sampling for Carbon 13 for as long as five hours without interruption. This is dramatic improvement in cost and ease of use of traditional IRMS. Read about the technology at www.picarro.com
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Combustion Module-CRDSA Unique Solution for Bulk 13C Analysis
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What if you could run bulk 13C analysis…
• With high-precision
• With unprecedented ease-of-use
• With a compact system
• For far cheaper than IRMS ?
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From Food Apps to Packaging Material
• Food adulteration
• CID in Plant breeding
• Soils / Sediments
• Carbonates
• Green Packaging QC
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Picarro CM-CRDS Enables….
High-precision δ13C analysis of solids & liquids
Combustion Module (CM)
Liaison™ Interface
CRDS
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Liaison Universal Interface
1. Admits gas sample from
front-end
2. Collects current processed sample
3. Delivers previous sample to CRDS
4. Purges gas bag to collect next sample
In Parallel:
Fully Automated
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Excellent precision
• 5 hr analysis of 29 solid samples of acetanilide std:
=> Excellent precision: SD < 0.1‰
0 1 2 3 4 5 Hrs
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Sample Delta (‰) S.D. (‰) Std Certified value
USGS 40 First -26.370 0.090 -26.389 ‰
Honey A -22.687 0.165
Honey B -22.324 0.120
Honey C -25.690 0.184
Honey D -25.555 0.047
Honey E -27.670 0.082
USGS 40 Mid -26.398 0.054 -26.389 ‰
Honey F -24.946 0.089
Honey G -24.245 0.032
Honey H -24.121 0.065
Honey I -24.128 0.046
Honey J -24.217 0.107
USGS 40 Last -26.381 0.083 -26.389 ‰
Honey Samples Analysis
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Sample Delta (‰) S.D. (‰) IRMS(‰) Difference (‰)
Honey A -22.22 0.165 -22.2 -0.02
Honey B -21.85 0.120 -22.0 0.15
Honey C -25.22 0.184 -25.6 0.38
Honey D -25.08 0.047 -25.1 0.02
Honey E -27.20 0.082 -26.8 -0.40
Honey F -24.47 0.089 -24.4 -0.07
Honey G -23.77 0.032 -23.9 0.13
Honey H -23.65 0.065 -23.9 0.15
Honey I -23.66 0.046 -23.8 0.14
Honey J -23.74 0.107 -24.2 0.46
Honey Analysis Compared with IRMS
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Food Fraud Detection
Honey adulteration with corn syrup: 5%, 10% & 15% w/w
Exceptional correlation of calculated & measured δ13C values
Δδ values are < 0.1 ‰, even at the 5% adulteration level
R2 = 0.9999
-27-26-25-24-23-22-21-20-19-18-17-16-15-14-13-12-11-10
-27 -26 -25 -24 -23 -22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12 -11 -10
Predicted δ13C value (‰)
Mea
sure
d δ
13C
val
ue
(‰)
100% HFCS
100% Honey