Determination of moisture in polymers by heating vaporization-Karl Fischer coulometric titration method.

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  • KATOH Hiromasa
    Mitsubishi Kasei Corporation, Research Center, Analysis Laboratory
  • FUJINO Hiroko
    Mitsubishi Kasei Corporation, Research Center, Analysis Laboratory
  • NOZAWA Akiyoshi
    Mitsubishi Kasei Corporation, Research Center, Analysis Laboratory

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Other Title
  • 加熱気化／カールフィッシャー電量滴定法によるポリマー中の水分の定量
  • カネツ キカ カール フィッシャー デンリョウ テキテイホウ ニ ヨル ポリ

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Abstract

For the determination of water content in polymers, we compared the heating vaporization-Karl Fischer (KF) coulometric titration method with the official standard method in which a polymer sample is completely dissolved in an appropriate solvent before an aliquot is taken for KF volumetric titration. Compared with the latter standard currently in use, the former method has the following merits; simple operation, lower determination limit and good reproducibility. Thus it is considered suitable as an official method.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 41 (4), T55-T58, 1992

    The Japan Society for Analytical Chemistry

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