Hi Fred,

I will send you off-list a couple of my papers on this subject.  Pier de Groot's Handbook on Stable Isotope Analytical Techniques is also a great resource in this regard.

There is also a book in the pipeline on CSIA by GC-IRMS to watch out for. Authors are Jochmann & Schmidt and estimated date of release is 31 Oct this year.



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Dr W Meier-Augenstein, CChem, FRSC
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The James Hutton Institute<>

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From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf Of Fred Martin Kaaby
Sent: 04 May 2011 14:27
To: [log in to unmask]
Subject: [ISOGEOCHEM] GC-IRMS, peak shape and how it affect stable isotope ratios for carbon and hydrogen

Dear IsoGeochem

I have very difficult to find literature that concerns the subject of the quality of the chromatography and how it affects the stable isotope ratios in GC-IRMS.
I'm thinking especially about peak shape (tailing/fronting, overload, poor oxidation/reduction of oven, leakages, bad column etc), and not so much about poor separation.

Has anyone on this list done studies into this subject, that could tell me a little about it, or maybe show some data on it? How does peak shape, background and signal strength correlate and affect the isotope ratios?

Thank you very much!

Best regards,
Fred Martin Kaaby
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