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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

Bronk, C. R. and Hedges, R. E. M. 1987 A gas ion source for 14C dating. Nuclear Instruments and Methods in Physics Research B29: 45–49.CrossRefGoogle Scholar
1989 Use of the CO2 source in radiocarbon dating by AMS. In Long, A., Kra, R. S. and Srdoč, D., eds., Proceedings of the 13th International 14C Conference. Radiocarbon 31(3): 298–304.Google Scholar
Bronk, C. R. and Hedges, R. E. M. 1990 A gaseous ion source for routine AMS 14C dating. Nuclear Instruments and Methods in Physics Research B52:322–326.Google Scholar
Bronk Ramsey, C. and Hedges, R. E. M. 1994a Carbon dioxide sputter source development at Oxford. Nuclear Instruments and Methods in Physics Research B92: 100–104.Google Scholar
Bronk Ramsey, C. and Hedges, R. E. M. 1994b Gas handling systems for 14C dating by AMS. Nuclear Instruments and Methods in Physics Research B92: 105–110.Google Scholar
Freeman, S. P. T., Bronk Ramsey, C. and Hedges, R. E. M. 1994 Imaging AMS. Nuclear Instruments and Methods in Physics Research B92: 231–236.CrossRefGoogle Scholar
McNair, H. M. and Bonelli, E. J. 1968 Basic Gas Chromatography. Berkeley, California, Varian Instruments.Google Scholar