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    National Tsing Hua University Institutional Repository > 原子科學院  > 生醫工程與環境科學系 > 期刊論文 >  Determination of chromium in airborne particulate matter by high resolution and laser ablation inductively coupled plasma mass spectrometry


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/61816


    Title: Determination of chromium in airborne particulate matter by high resolution and laser ablation inductively coupled plasma mass spectrometry
    Authors: Wang CF;Chin CJ;Luo SK;Men LC
    教師: 王竹方
    Date: 1999
    Publisher: Elsevier
    Relation: Analytica Chimica Acta, 1999, 389(1-3), 257-266
    Keywords: laser ablation inductively coupled plasma mass spectrometry
    high resolution inductively coupled plasma mass spectrometry
    high-pressure bomb digestion
    microwave digestion
    airborne particles
    chromium determination
    Abstract: This work presents an optimized sample digestion procedure for determining Cr in airborne particulate matter by inductively coupled plasma mass spectrometry (ICP-MS). High resolution (HR) ICP-MS is utilized to examine how the added acid mixture and subsequent evaporation process influence spectroscopic interference. Experimental results indicate that a two-step high pressure bomb acid digestion (1st step with HNO3+HClO4, and 2nd step with HF) procedure without evaporation is the optimum pre-treatment procedure for determining Cr by ICP-MS. In addition, laser ablation (LA) ICP-MS is used directly to analyze for Cr in airborne particulate matter. Results obtained by LA-ICP-MS correlate well with certified values and values obtained from the conventional acid digestion/HR-ICP-MS method. The detection limit for Cr in air particles by HR-ICP-MS with the proposed digestion method is<10 ng g(-1). Furthermore, LA-ICP-MS provides a rapid direct analytical technique with a detection limit of 0.05 mu g/filter.
    URI: http://www.elsevier.com/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/61816
    Appears in Collections:[生醫工程與環境科學系] 期刊論文

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