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Radiocarbon with Gas Chromatography

Published online by Cambridge University Press:  18 July 2016

Christopher Bronk Ramsey  and
R. E. M. Hedges
Christopher Bronk Ramsey
Affiliation:
Oxford University Radiocarbon Accelerator Unit, 6 Keble Road, Oxford OX1 3QJ, England
R. E. M. Hedges
Affiliation:
Oxford University Radiocarbon Accelerator Unit, 6 Keble Road, Oxford OX1 3QJ, England
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Abstract

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In 14C tracer studies, and when looking for modern contamination in archaeological samples, it is often necessary to measure the 14C concentration of individual chemical fractions. Gas chromatography (GC) is one method that is frequently used for separation of chemical fractions. The gas ion source at the Oxford Radiocarbon Accelerator Unit for accelerator mass spectrometry (AMS) provides the opportunity to measure fractions from a GC instrument directly. Although the first investigations are likely to be 14C tracer studies, such a GC-AMS system could find much wider application. We present results from a pilot study of the peak sensitivity, baseline stability and crosstalk of the accelerator system used in this way. We also discuss the practical considerations in developing a GC-AMS instrument for routine use.

Type
V. Advances in Measurement Techniques
Information
Radiocarbon , Volume 37 , Issue 2 , 1995 , pp. 711 - 716
Copyright
Copyright © the Department of Geosciences, The University of Arizona 

References

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