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Online 13C and 14C Gas Measurements by EA-IRMS–AMS at ETH Zürich

Published online by Cambridge University Press:  17 October 2016

Cameron P McIntyre
Affiliation:
Biogeoscience, ETH Zürich, NO, Sonnegstrasse 5, 8092, Zürich, Switzerland Laboratory of Ion Beam Physics, ETH Zürich, HPK, Otto-Stern-Weg 5, 8093 Zürich, Switzerland Current address: SUERC AMS Laboratory, University of Glasgow, Rankine Av., G75 0QF, Glasgow, UK
Lukas Wacker
Affiliation:
Laboratory of Ion Beam Physics, ETH Zürich, HPK, Otto-Stern-Weg 5, 8093 Zürich, Switzerland
Negar Haghipour
Affiliation:
Biogeoscience, ETH Zürich, NO, Sonnegstrasse 5, 8092, Zürich, Switzerland
Thomas M Blattmann
Affiliation:
Biogeoscience, ETH Zürich, NO, Sonnegstrasse 5, 8092, Zürich, Switzerland
Simon Fahrni
Affiliation:
Laboratory of Ion Beam Physics, ETH Zürich, HPK, Otto-Stern-Weg 5, 8093 Zürich, Switzerland Current address: Ionplus AG, Lerzenstrasse 12, 8953 Dietikon, Switzerland
Muhammed Usman
Affiliation:
Biogeoscience, ETH Zürich, NO, Sonnegstrasse 5, 8092, Zürich, Switzerland
Timothy I Eglinton
Affiliation:
Biogeoscience, ETH Zürich, NO, Sonnegstrasse 5, 8092, Zürich, Switzerland
Hans-Arno Synal
Affiliation:
Laboratory of Ion Beam Physics, ETH Zürich, HPK, Otto-Stern-Weg 5, 8093 Zürich, Switzerland
Corresponding

Abstract

Studies using carbon isotopes to understand the global carbon cycle are critical to identify and quantify sources, sinks, and processes and how humans may impact them. 13C and 14C are routinely measured individually; however, there is a need to develop instrumentation that can perform concurrent online analyses that can generate rich data sets conveniently and efficiently. To satisfy these requirements, we coupled an elemental analyzer to a stable isotope mass spectrometer and an accelerator mass spectrometer system fitted with a gas ion source. We first tested the system with standard materials and then reanalyzed a sediment core from the Bay of Bengal that had been analyzed for 14C by conventional methods. The system was able to produce %C, 13C, and 14C data that were accurate and precise, and suitable for the purposes of our biogeochemistry group. The system was compact and convenient and is appropriate for use in a range of fields of research.

Type
Advances in Physical Measurement Techniques
Copyright
© 2016 by the Arizona Board of Regents on behalf of the University of Arizona 

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Footnotes

Selected Papers from the 2015 Radiocarbon Conference, Dakar, Senegal, 16–20 November 2015

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Supplementary material: PDF

McIntyre supplementary material

Table S1 and Figure S1

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Online 13C and 14C Gas Measurements by EA-IRMS–AMS at ETH Zürich
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