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Contamination and Fractionation Effects in AMS-Measured 14C/12C and 13C/12C Ratios of Small Samples

Published online by Cambridge University Press:  18 July 2016

Cees Alderliesten ,
Klaas Van Der Borg  and
Arie F. M. De Jong
Cees Alderliesten
Affiliation:
R. J. Van de Graaff Laboratorium, Utrecht University, P.O. Box 80.000, NL-3508 TA Utrecht The Netherlands
Klaas Van Der Borg
Affiliation:
R. J. Van de Graaff Laboratorium, Utrecht University, P.O. Box 80.000, NL-3508 TA Utrecht The Netherlands
Arie F. M. De Jong
Affiliation:
R. J. Van de Graaff Laboratorium, Utrecht University, P.O. Box 80.000, NL-3508 TA Utrecht The Netherlands
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Abstract

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In AMS measurements on small (m 400 μg) carbon samples, an m-dependence has been noted for the 14C/12C and 13C/12C ratios that is due to the combined effect of contamination and fractionation. A simple formalism is presented to describe the phenomena and to correct measurements on unknowns for their effect.

Type
Part 1: Methods
Information
Radiocarbon , Volume 40 , Issue 1: 16th International Radiocarbon Conference 16-20,1997 Groningen , 1997 , pp. 215 - 221
Copyright
Copyright © The American Journal of Science 

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