高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (2): 179.

• 论文 • 上一篇    下一篇

示波指示技术在动力学分析中的应用(Ⅲ)——示波双安培催化动力学法测定铜和碘

黄岚, 高鸿   

  1. 南京大学化学系, 南京, 210008
  • 收稿日期:1990-03-20 修回日期:1991-10-25 出版日期:1992-02-24 发布日期:1992-02-24
  • 通讯作者: 高鸿
  • 基金资助:

    国家自然科学基金

Application of Oscillo-indicating Technique to Kinetic Analysis (Ⅲ)——Determination of Copper and Iodine by Catalytic Method with Oscillo-biamperometry

HUANG Lan, GAO Hong(H. Kao)   

  1. Department of Chemistry, Nanjing University, Nanjing, 210008
  • Received:1990-03-20 Revised:1991-10-25 Online:1992-02-24 Published:1992-02-24

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关键词: 示波指示技术, 动力学分析, 铜, 碘

Abstract: This paper reports the application of oscillo-indicating technique to kinetic analysisCu (Ⅱ) and I- are determined by oxidation of Na2S2O3 with Fe(Ⅲ), which is catalyzed by Cu(Ⅱ) and by oxidation of As(Ⅲ) with Ce(Ⅳ), which is catalyzed by I-, respectivelyThe detective limit reaches 2× 10-7 mol/Lfor Cu(Ⅱ) and 2× 10-8 mol/Lfor I- This method shows advantages of sensitivity, convenience and economy.

Key words: Oscillo-indicating technique, Kinetic analysis, Copper, Iodine

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