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    National Tsing Hua University Institutional Repository > 歷任校長 > 劉兆玄 (1987-1993) > 期刊論文 >  Chemical Purification of Silicon, Part II – Determination of Impurities in Trichlorosilane and Crude Silicon

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/81060

    Title: Chemical Purification of Silicon, Part II – Determination of Impurities in Trichlorosilane and Crude Silicon
    Authors: Chang, M.M.;Chen, C.C.;Liu, C. S.;Chang, C. T.;Shu, F. R.
    教師: 劉兆玄
    Date: 1974
    Publisher: Elsevier
    Relation: Journal of the Chinese Institute of Chemical Engineers, Elsevier, Volume 5, 1974, Pages 99-105
    Keywords: Trichlorosilane
    Abstract: An analytical procedure for the determination of metal nd non-metal impurities at ppm level in crude silicon and purified trichlorosilane has been developed. The analyses of most metal impurities are carried out with direct atomic absorption spectrophotometric techniques. A fluoremetric method is developed for the assay of aluminum. Boron and phosphorus are determined via the methylene blue method and the molybdophosphoric acid method, respectively. Our analytical data clearly indicates that the chlorination process of our design is highly effective in removing impurities in the course of chemical purification of silicon.
    Relation Link:
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/81060
    Appears in Collections:[劉兆玄 (1987-1993)] 期刊論文
    [化學系] 期刊論文

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