Carbon dioxide capture using a zeolite molecular sieve sampling system for isotopic studies (C-13 and C-14) of respiration
Hardie, S.M.L.; Garnett, M.H.; Fallick, A.E.; Rowland, A.P.; Ostle, N.J.. 2005 Carbon dioxide capture using a zeolite molecular sieve sampling system for isotopic studies (C-13 and C-14) of respiration. Radiocarbon, 47 (3). 441-451.Full text not available from this repository.
A method for collecting an isotopically representative sample of CO2 from an air stream using a zeolite molecular sieve is described. A robust sampling system was designed and developed for use in the field that includes reusable molecular sieve cartridges, a lightweight pump, and a portable infrared gas analyzer (IRGA). The system was tested using international isotopic standards (13C and 14C). Results showed that CO2 could be trapped and recovered for both δ13C and 14C analysis by isotope ratio mass spectrometry (IRMS) and accelerator mass spectrometry (AMS), respectively, without any contamination, fractionation, or memory effect. The system was primarily designed for use in carbon isotope studies of ecosystem respiration, with potential for use in other applications that require CO2 collection from air.
|Programmes:||CEH Programmes pre-2009 publications > Biogeochemistry > BG01 Measuring and modelling trace gas, aerosol and carbon > BG01.2 Carbon|
|CEH Sections:||_ Environmental Chemistry & Pollution
_ Ecological Processes in Freshwater & Soils
|NORA Subject Terms:||Agriculture and Soil Science
Biology and Microbiology
Ecology and Environment
|Date made live:||17 Aug 2009 13:41|
Actions (login required)