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
