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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 >  Multi-element analysis of airborne particulate matter collected on PTFE-membrane filters by 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/987654321/61817


    Title: Multi-element analysis of airborne particulate matter collected on PTFE-membrane filters by laser ablation inductively coupled plasma mass spectrometry
    Authors: Chin CJ;Wang CF;Jeng SL
    教師: 王竹方
    Date: 1999
    Publisher: Royal Society of Chemistry
    Relation: J. Anal. At. Spectrom., 1999, 14, 663-668
    Keywords: airborne particulate
    PTFE-membrane
    filter
    laser ablation
    plasma mass spectrometry
    Abstract: Direct analysis of airborne particulate matter collected on PTFE-membrane filters using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) was performed. Laboratory prepared standard filter samples were analyzed. Several parameters, including the laser energy, pulse type and beam focus, thermal properties and homogeneity of the sample and the carrier gas flow rate: may affect the LA-ICP-MS measurement. The influences of these parameters were thoroughly examined. Empirical results obtained here demonstrated that applying LA-ICP-MS for multi-element analysis of airborne particulate matter collected on PTFE-membrane filter is feasible. More than 20 major, minor and trace elements in airborne particles on PTFE membrane filters can be determined. It was found that the optimum ablation efficiency can be achieved using a 160 mJ single shot laser operated in the free-running mode with a 6.5 mm defocus distance from the filter surface. The optimum transport efficiency for most of the elements can be obtained if the argon gas flow rate is kept at 0.8 L min(-1).
    URI: http://www.rsc.org/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/61817
    Appears in Collections:[生醫工程與環境科學系] 期刊論文

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