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    An International Reference Material for Radiocarbon Dating

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    Author
    Mann, W. B.
    Issue Date
    1983-01-01
    Keywords
    properties
    carboxylic acids
    oxalic acid
    standard materials
    organic acids
    organic compounds
    organic materials
    methods
    C 14
    carbon
    isotopes
    radioactive isotopes
    C 13 C 12
    stable isotopes
    absolute age
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    Citation
    Mann, W. B. (1983). An international reference material for radiocarbon dating. Radiocarbon, 25(2), 519-527.
    Publisher
    American Journal of Science
    Journal
    Radiocarbon
    Description
    From the 11th International Radiocarbon Conference held in Seattle, Washington, June 20-26, 1982.
    URI
    http://hdl.handle.net/10150/652615
    DOI
    10.1017/S0033822200005816
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    In August 1980, the National Bureau of Standards (NBS) issued, in the form of oxalic acid, a new International Reference Material of contemporary 14C for use in radiocarbon dating laboratories. This reference material was to replace the 1975 oxalic-acid standard, supplies of which had been practically exhausted in 1978. The preparation of the new oxalic-acid standard was described in a preliminary report, as were, also, the results then available for the activity-concentration ratio of the new to the old standard obtained by a number of leading international laboratories. With the recent completion of the analysis of all results submitted by the participating laboratories, NBS plans to issue these recently calibrated samples of oxalic acid as an NBS Standard Reference Material. There is, however, no significant difference in the reported value of its activity concentration, relative to that of the 1957 standard, from that given provisionally in 1980. Subsequent to our report (Cavallo and Mann, 1980) a further measurement of relative activity concentration was reported by the Radiocarbon Laboratory of Peking University. Their value, and that also for Delta-13C, is insignificantly different from the average value of the results submitted by the eleven laboratories that participated in the international comparison organized by NBS.
    Type
    Proceedings
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200005816
    Scopus Count
    Collections
    Radiocarbon, Volume 25, Number 2 (1983)

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