Hi Bob,
No idea if the glove box idea would work, but I would strongly advise against using Ar to purge the vials. Dry, zero-grade N2 is the better option.
Contemporaneous presence of Argon in the IRMS ion source will suppress / interfer with ionization of CO2 resulting in skewed d13C values. I have described this phenomenon with illustrating figure in Part II of my book (chapter II.4.2).
Best,
Wolfram
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Prof. Dr W Meier-Augenstein, CChem, FRSC
Stable Isotope Forensics & Analytical Sciences
Robert Gordon University
School of Pharmacy and Life Sciences
The Ian Wood Building
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https://onlinelibrary.wiley.com/doi/book/10.1002/9781119080190
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From: Stable Isotope Geochemistry <[log in to unmask]> on behalf of Michener, Robert H <[log in to unmask]>
Sent: 06 December 2018 17:39:03
To: [log in to unmask]
Subject: [ISOGEOCHEM] couple of carbonate questions
Hi all,
I'm hoping to get started with some backlogged carbonate samples. We have a MultiFlow to flush the vials, but to save time I'm thinking of flushing the vials in a glove bag. Has anyone tried this? And would argon work as a flush gas (I have a tank on hand)?
Thanks,
Bob
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Robert Michener
IRMS Laboratory Manager
Boston University Stable Isotope Laboratory
Department of Biology
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