picarro combustion module cavity ring down spectroscopy stable isotope analysis

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DESCRIPTION

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

TRANSCRIPT

Combustion Module-CRDSA Unique Solution for Bulk 13C Analysis

2

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 ?

3

From Food Apps to Packaging Material

• Food adulteration

• CID in Plant breeding

• Soils / Sediments

• Carbonates

• Green Packaging QC

4

Picarro CM-CRDS Enables….

High-precision δ13C analysis of solids & liquids

Combustion Module (CM)

Liaison™ Interface

CRDS

5

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

6

Excellent precision

• 5 hr analysis of 29 solid samples of acetanilide std:

=> Excellent precision: SD < 0.1‰

0 1 2 3 4 5 Hrs

7

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

8

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

9

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

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