Volume 8, Issue 8 (September 2011)

    Beryllium Measurement by Optical Fluorescence in Samples Contaminated by Strongly Fluorescent Impurities

    (Received 4 October 2010; accepted 9 June 2011)

    Published Online: 2011

    CODEN: JAIOAD

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    Abstract

    A fluorescence method for determination of beryllium and beryllium oxide particles has been approved as a standard test method by ASTM International and the National Institute for Occupational Safety and Health. The procedure involves dissolution of samples in ammonium bifluoride solution and adding a small aliquot of extract to a basic hydroxybenzoquinoline sulfonate fluorescent dye and measuring itsfluorescence. This method is specific to beryllium and is not affected by the presence of other metals. However, the results from such a method may be compromised by organic fluorescent impurities which have optical characteristics similar to the beryllium-bonded hydroxybenzoquinoline sulfonate. This study demonstrates that such impurities can be effectively removed by activated charcoal without compromising the sensitivity of the method or any other test attributes.


    Author Information:

    Agrawal, Anoop
    Berylliant Inc.,

    Adams, Lori
    Berylliant Inc.,

    Agrawal, Akshay
    Berylliant Inc.,

    Cronin, John P.
    Berylliant Inc.,

    Lopez Tonazzi, Juan Carlos
    Berylliant Inc.,

    Duran, Brandy
    Los Alamos National Laboratory,


    Stock #: JAI103411

    ISSN: 1546-962X

    DOI: 10.1520/JAI103411

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    Author
    Title Beryllium Measurement by Optical Fluorescence in Samples Contaminated by Strongly Fluorescent Impurities
    Symposium Symposium on Surface and Dermal Sampling, 2010-10-15
    Committee D22