Stable Isotope Geochemistry


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Sergey Assonov <[log in to unmask]>
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Stable Isotope Geochemistry <[log in to unmask]>
Mon, 1 Aug 2005 11:14:56 +0200
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Dear Istvan and others,

I am currently writing a short notice on CO2 extraction, this I will 
send directly to Istvan.
The paper Pier mentioned is fine but the method is not suitable for CO2, 
only for isotope ratios of N2, O2 and Ar/O2 in the air.


Pier de Groot wrote:

>Dear Istvan and others,
>There is a recent publication on this matter:
>Huber Ch., Leuenberger, M. and Zumbrunnen, O. (2003) Continuous extraction
>of trapped air from bubble ice or water for on-line determination of isotope
>ratios. Anal. Chem., 75: 2324-2332.
>Might be of interest for you.
>Best wishes,
>Pier de Groot.
>>Dear  Sergey,
>>recently we have studied the stable isotope composition of block ice
>>(10-20 meter thick) in ice cave and we got interesting results, but the
>>interpretation of the data is not so easy. Therefore we are thinking
>>about to measure the isotopic composition of CO2 trapped in the ice if
>>there is a cheap method for sampling. From your letter I see that you
>>have experience with stable isotope analyses of CO2 trapped in ice.
>>Would you be so kind to refer me to papers describing methods for
>>sampling this CO2 gas for stable isotope analysis? We would like to take
>>samples from cave ice, and the cave is not reachable by car, only by foot!!
>>Best regards
>>Istvan Forizs
>>Sergey Assonov wrote: