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    Determination of arginine in dietary supplements

    Access Status
    Fulltext not available
    Authors
    Gange, M.
    Francis, P.
    Costin, J.
    Barnett, N.
    Lewis, Simon
    Date
    2005
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Gange, M. and Francis, P. and Costin, J. and Barnett, N. and Lewis, S. 2005. Determination of arginine in dietary supplements. Journal of the Science of Food and Agriculture. 85: pp. 1217-1221.
    Source Title
    Journal of the Science of Food and Agriculture
    DOI
    10.1002/jsfa.2084
    ISSN
    00225142
    URI
    http://hdl.handle.net/20.500.11937/8451
    Collection
    • Curtin Research Publications
    Abstract

    We present a rapid and sensitive flow injection method for the determination of arginine in dietary supplements. Detection was based on the chemiluminescence reaction of arginine with alkaline hypobromite. The response is proportional to analyte concentration over the calibration range, from 2.5 × 10-6 to 1 × 10-4 M, and a relative standard deviation of 1% was calculated (1 × 10-5 M, n = 12). Samples required only aqueous dilution prior to analysis, and over 100 samples could be analysed per hour, which is superior to that achieved with conventional colorimetric and enzymatic procedures. The results obtained with the flow injection methodology were concordant with those achieved using high-performance liquid chromatography employing pre-column derivatisation and fluorescence detection.

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