Evaluation for Degradation of Pyridine-Triphenylborane Anti-Fouling Agent in Acetonitrile Using Capillary Zone Electrophoresis

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  • キャピラリーゾーン電気泳動法による有機ホウ素系防汚剤のアセトニトリル中における分解性評価
  • キャピラリー ゾーン デンキ エイドウホウ ニ ヨル ユウキ ホウソケイボウオザイ ノ アセトニトリル チュウ ニ オケル ブンカイセイ ヒョウカ

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Abstract

A commercial organoborane compound, pyridine-triphenylborane (PTPB), is often applied to ship hulls as an anti-fouling agent in order to keep them free from marine organisms, such as barnacles and bivalves. However, the degradation process of PTPB and its degradation products have not been well understood, because of lack of an analytical method for both PTPB and its estimated degradation products. We previously developed a procedure using capillary zone electrophoresis (CZE) with direct UV detection for the simultaneous determination of PTPB and its estimated degradation products, such as diphenylborinic acid (DPB), phenylboronic acid (MPB), and phenol. For this study, simple degradation experiments were carried out to verify the usefulness of the proposed method for further PTPB degradation investigations. That is to say, PTPB samples dissolved in acetonitrile were put in the open air and a dark place to examine the effects of the light intensity and the temperature on the degradation of PTPB. The sample solutions were analyzed by the CZE method with the elapse of time. As a result, it was suggested that the degradation of PTPB was significantly affected by the light intensity, rather than the temperature. It has consequently been demonstrated that the CZE method is a useful tool to elucidate the degradation process of PTPB and its degradation products.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 58 (4), 301-304, 2009

    The Japan Society for Analytical Chemistry

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