変調対流ボルタンメトリーによるチオール化合物の定量

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書誌事項

タイトル別名
  • Determination of thiols by hydrodynamic modulation voltammetry.
  • ヘンチョウ タイリュウ ボルタンメトリー ニ ヨル チオール カゴウブツ ノ

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抄録

Square wave hydrodynamic modulation voltammetry with a vibrating platinum wire electrode was applied to the determination of thiols in pH 3.0 phosphate buffer solution. The modulation currentpotential curve and the difference modulation currentpotential curve showed a maximum at the potential range between +0.7 V to +0.9 V vs. SCE. The difference modulation current measured at +0.65 V increased linearly with the concentration. Also, the modulation current increased with the number of thiols in a molecule. Thiols except reduced glutathione were determined in the order of 10-6 mol dm-3 with this method. Reduced glutathione gave the unexpectedly small modulation current. The effect of adsorption of protein molecules on the electrode surface was discussed.

収録刊行物

  • 分析化学

    分析化学 36 (10), 628-631, 1987

    公益社団法人 日本分析化学会

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