高等学校化学学报

高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (6): 503.

• 研究论文 • 上一篇    下一篇

催化电位法测定痕量铜

仝华翔, 仰蜀薰   

  1. 郑州大学化学系
  • 收稿日期:1985-05-03 出版日期:1986-06-24 发布日期:1986-06-24

Catalytic Potentiometric Determination of Trace Amount of Copper (Ⅱ)

Tong Huaxiang, Yang Shuxun   

  1. Department of Chemistry, Zhengzhou University, Zhengzhou
  • Received:1985-05-03 Online:1986-06-24 Published:1986-06-24

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被引次数

6

摘要： 本文提出固定时间标准校正比较法,用碘离子选择性电极为指示电极研究了Cu2+-S2O82--I-反应体系催化测定痕量Cu2+的最佳条件并应用于实际分析。

Abstract: This paper describes the optimum conditions for determination of Cu ( Ⅱ) which catalyzes the reaction between peroxidisulphate and iodide that monitored by iodide selective electrode. Anew method of standard calibration and comparison was suggested simultaneously. At a fixed-time procedure, the variation of poten-tial(ΔmV) is linearly related to Cu ( Ⅱ ) Cone, in the range of 2.5 to 25 ng/ml.

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