picarro combustion module cavity ring down spectroscopy stable isotope analysis

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