Radiochemically ultrapure 14CO

Richard J. Hardy; John C. Sheppard; Malcolm J. Campbell

doi:10.1016/0020-708X(84)90013-9

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Radiochemically ultrapure 14CO

Richard J. Hardy, John C. Sheppard and Malcolm J. Campbell

The International journal of applied radiation and isotopes, Vol.35(11), pp.1071-1072

01/01/1984

DOI: https://doi.org/10.1016/0020-708X(84)90013-9

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Abstract

Preparation of ultra high-purity 14CO tracers by the reduction of 14CO 2 by Zn at 395°C are described. Purity levels of 10 −8 14 CO 2 14 CO have been obtained by successive freeze-outs of 12CO 2 carrier gas at liquid-nitrogen temperature. Radiochemical purity of the 14CO is limited by radiolysis and surface catalysis. The radiolysis rate of 14CO corresponds to a G(CO 2) of 2.5 ± 0.9. Techniques are discussed to reduce these problems.

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Title: Radiochemically ultrapure 14CO
Creators: Richard J. Hardy - Department of Chemical Engineering, Washington State University, Pullman, WA 99164-2710, U.S.A
John C. Sheppard - Washington State University
Malcolm J. Campbell - Washington State University
Publication Details: The International journal of applied radiation and isotopes, Vol.35(11), pp.1071-1072
Academic Unit: Laboratory for Atmospheric Research
Publisher: Elsevier B.V
Number of pages: 2
Identifiers: 99901320139601842
Language: English
Resource Type: Journal article