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Laboratory of Cosmochemistry Radiocarbon Measurements I

Published online by Cambridge University Press:  18 July 2016

A K Lavrukhina  and
V A Alexeev
A K Lavrukhina
Affiliation:
V I Vernadsky Institute of Geochemistry and Analytical Chemistry, USSR Academy of Sciences, Moscow, USSR
V A Alexeev
Affiliation:
V I Vernadsky Institute of Geochemistry and Analytical Chemistry, USSR Academy of Sciences, Moscow, USSR
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The 14C dates listed in this report on archaeologic and geologic samples were obtained mainly from 1969 to 1974. Pretreatment of wood charcoal and carbonized fossil soil by boiling in acid, alkali, and acid, again, is standard procedure. The method employed is liquid scintillation counting of synthesized benzene using the basic techniques described by Arslanov and Gromova (1968) converting sample → Li2C2 → C2H2 → C6H6 with an overall yield to ca 90%. A vanadium-alumina catalyst is used at reduced temperature for the acetylene to benzene conversion. Anthracite coal was used for the dead carbon run.

Type
Research Article
Information
Radiocarbon , Volume 19 , Issue 1 , 1977 , pp. 12 - 18
Copyright
Copyright © The American Journal of Science 

References

Alexeev, V A, Lavrukhina, A K, and Milnikova, Z K, 1975, Variations of radiocarbon content in annual rings of the sequoia (1890-1916): Geokhimia, no. 5, p 667–675.Google Scholar
Arslanov, Kh A and Gromova, L I, 1968, Cyclic trimerization of acetylene and alkylacetylene on the chromalumosilicate catalyzer: Doklady Akad Nauk SSSR, v 183, p 881–884.Google Scholar
Broecker, W S and Olson, E A, 1961, Lamont radiocarbon measurements VIII: Radiocarbon, v 3, p 176–204.CrossRefGoogle Scholar
Lavrukhina, A K, Alexeev, V A, Galimov, E M, and Sulerzhitsky, L D, 1973, Radiocarbon in the rings of sequoia: Doklady Akad Nauk SSSR, v 210, p 941–943.Google Scholar