• 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>