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    Determination of halonitromethanes and haloacetamides: An evaluation of sample preservation and analyte stability in drinking water

    185597_185596 full.pdf (866.6Kb)
    Access Status
    Open access
    Authors
    Liew, Deborah
    Linge, Kathryn
    Joll, Cynthia
    Heitz, Anna
    Charrois, Jeffrey
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Liew, Deborah and Linge, Kathryn L. and Joll, Cynthia A. and Heitz, Anna and Charrois, Jeffrey W.A. 2012. Determination of halonitromethanes and haloacetamides: An evaluation of sample preservation and analyte stability in drinking water. Journal of Chromatography A. 1241: pp. 117-122.
    Source Title
    Journal of Chromatography A
    DOI
    10.1016/j.chroma.2012.04.037
    ISSN
    0021-9673
    School
    Curtin Water Quality Research Centre (Industry Research Centre)
    Remarks

    NOTICE: This is the author’s version of a work that was accepted for publication in Journal of Chromatography A. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Chromatography A. Vol. 1241, 8 June, 2012. DOI: http://dx.doi.org/10.1016/j.chroma.2012.04.037

    URI
    http://hdl.handle.net/20.500.11937/3508
    Collection
    • Curtin Research Publications
    Abstract

    Simultaneous quantitation of 6 halonitromethanes (HNMs) and 5 haloacetamides (HAAms) was achieved with a simplified liquid–liquid extraction (LLE) method, followed by gas chromatography–mass spectrometry. Stability tests showed that brominated tri-HNMs immediately degraded in the presence of ascorbic acid, sodium sulphite and sodium borohydride, and also reduced in samples treated with ammonium chloride, or with no preservation. Both ammonium chloride and ascorbic acid were suitable for the preservation of HAAms. Ammonium chloride was most suitable for preserving both HNMs and HAAms, although it is recommended that samples be analysed as soon as possible after collection. While groundwater samples exhibited a greater analytical bias compared to other waters, the good recoveries (>90%) of most analytes in tap water suggest that the method is very appropriate for determining these analytes in treated drinking waters. Application of the method to water from three drinking water treatment plants in Western Australia indicating N-DBP formation did occur, with increased detections after chlorination. The method is recommended for low-cost, rapid screening of both HNMs and HAAms in drinking water.

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