Molecular Sieves in 14CO2 Sampling and Handling

Bibliographic Data

ID9244172
AuthorsVesa Palonen (0000-0001-9589-7989)
Year2013
Volume55
Issue3–4
Publication date2013-01-01
Open AccessNo
TypeARTICLE
VenueRadiocarbon (JOURNAL)
Journal identifiersISSN: 0033-8222 • E-ISSN: 1945-5755
PublisherCambridge University Press (CUP) (PUBLISHER)
DOI10.2458/azu_js_rc.55.16335
OpenAlexW2154977792
LanguageEN
Citations received1
References cited1

Molecular sieves are a promising way to sample and manipulate gaseous samples for radiocarbon analyses. Molecular sieve material can adsorb CO2 selectively, enabling sampling of CO2 from large air volumes in a small amount of adsorbent. The sieve material can be regenerated via heating and reused without removing the sieve material from its container. This results in ease of use and reduced risks of atmospheric contamination. Because sieve container volume is small and can be filled with synthetic air or nitrogen, it does not introduce underpressure to the system under study. Hence, sieves are suitable for many different experimental setups, from collection of CO2 from small soil chambers to atmospheric CO2 collection. The most common sieve material in use for sampling CO2 is the 13X zeolite. For environmental measurements starting this year, we have studied the properties of 13X zeolites in more detail. For reliable 14CO2 sampling, there are several caveats that should and can be avoided. In this contribution, we discuss these caveats and solutions to optimize the molecular sieve sampling process

Adsorption · Carbon fibers · Composite material · Mineralogy · Molecular sieve · Zeolite · Archaeology and ancient environmental studies · Chemistry · Computer Science · Environmental Science · Hydrocarbon exploration and reservoir analysis · Isotope Analysis in Ecology · Materials Science · Mathematics · Catalysis · Organic Chemistry

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