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    A preliminary determination of the absolute 14C/12C ratio of OX-I

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    _441-445.pdf (1.658Mb)
    Date
    2007-11
    Author
    Roberts, Mark L.  Concept link
    Southon, John R.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/4393
    As published
    https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/2943
    Abstract
    A preliminary determination of the absolute 14C/12C ratio of the oxalic acid I standard (NBS SRM 4990B) has been made. Using an accelerator mass spectrometry (AMS) system, a known number of radiocarbon ions were implanted in a thin copper foil. The foil was then combusted with the addition of 14C-free carrier material. This resulting gas (which had a known 14C/12C ratio) was graphitized and compared to OX-I material. This comparison yielded an absolute 14C/12C ratio of OX-I. The absolute 14C/12C ratio of OX-I, coupled with knowledge of the specific activity of OX-1, provides an alternative determination of the 14C half-life.
    Description
    Author Posting. © Arizona Board of Regents on behalf of the University of Arizona, 2007. This article is posted here by permission of Dept. of Geosciences, University of Arizona for personal use, not for redistribution. The definitive version was published in Radiocarbon 49 (2007): 441-445.
    Collections
    • Geology and Geophysics (G&G)
    Suggested Citation
    Radiocarbon 49 (2007): 441-445
     
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