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A Simplified In Situ Cosmogenic 14C Extraction System

Published online by Cambridge University Press:  18 July 2016

Jeffrey S Pigati ,
Nathaniel A Lifton ,
A J Timothy Jull  and
Jay Quade
Jeffrey S Pigati*
Affiliation:
Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA
Nathaniel A Lifton
Affiliation:
Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA
A J Timothy Jull
Affiliation:
Arizona-NSF AMS Facility, Physics Department, University of Arizona, Tucson, Arizona 85721, USA
Jay Quade
Affiliation:
Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA
*
Corresponding author. Email: jpigati@usgs.gov
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Abstract

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We describe the design, construction, and testing of a new, simplified in situ radiocarbon extraction system at the University of Arizona. Blank levels for the new system are low ((234 ± 11) x 103 atoms (1 σ; n = 7)) and stable. The precision of a given measurement depends on the concentration of 14C, but is typically <5% for concentrations of 100 x 103 atoms g–1 or more. The new system is relatively small and easy to construct, costs significantly less than the original in situ14C extraction system at Arizona, and lends itself to future automation.

Type
Sample Preparation
Information
Radiocarbon , Volume 52 , Issue 3: 20th Int. Radiocarbon Conference Proceedings , 2010 , pp. 1236 - 1243
Copyright
Copyright © 2010 by the Arizona Board of Regents on behalf of the University of Arizona 

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