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Media type:
E-Article
Title:
Online 13C and 14C Gas Measurements by EA-IRMS–AMS at ETH Zürich
Contributor:
McIntyre, Cameron P;
Wacker, Lukas;
Haghipour, Negar;
Blattmann, Thomas M;
Fahrni, Simon;
Usman, Muhammed;
Eglinton, Timothy I;
Synal, Hans-Arno
imprint:
Cambridge University Press (CUP), 2017
Published in:Radiocarbon
Language:
English
DOI:
10.1017/rdc.2016.68
ISSN:
0033-8222;
1945-5755
Origination:
Footnote:
Description:
<jats:title>Abstract</jats:title><jats:p>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. <jats:sup>13</jats:sup>C and <jats:sup>14</jats:sup>C 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 <jats:sup>14</jats:sup>C by conventional methods. The system was able to produce %C, <jats:sup>13</jats:sup>C, and <jats:sup>14</jats:sup>C 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.</jats:p>