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Mass-Spectrometer Analyses of Radiocarbon Standards

Published online by Cambridge University Press:  18 July 2016

Harmon Craig
Harmon Craig*
Affiliation:
Department of Earth Sciences, University of California, La Jolla
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Twenty-four samples of CO2 from combustion of the NBS oxalic-acid radiocarbon standard, submitted from 13 radiocarbon laboratories, were analyzed for C13 content in this laboratory in order to provide comparative data for normalizing the counting results. The samples were analyzed on Samson, a 60° sector, six-inch radius, McKinney-Nier type mass-spectrometer with magnetic switching between sample and standard gas feed to the instrument.

Type
Research Article
Information
Radiocarbon , Volume 3 , 1961 , pp. 1 - 3
Copyright
Copyright © The American Journal of Science 

References

Craig, H., 1953, The geochemistry of the stable carbon isotopes: Geochim, et Cosmochim, Acta, v. 3, p. 53–92.Google Scholar
Craig, H. 1954, Carbon 13 in plants and the relationships between carbon 13 and carbon 14 variations in nature: Jour. Geology, v. 62, p. 115–149.Google Scholar
Craig, H. 1957, Isotopic standards for carbon and oxygen and correction factors for mass-spectrometric analysis of carbon dioxide: Geochim. et Cosmochim, Acta, v. 12, p. 133–149.Google Scholar