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

1. Combustion Module-CRDS A Unique Solution for Bulk 13 C Analysis

4. Picarro CM-CRDS Enables…. High-precision δ 13 C 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

7. Honey Samples Analysis 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 ‰

8. Honey Analysis Compared with IRMS 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