高等学校化学学报

高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (8): 703.

• 研究简报 • 上一篇    下一篇

痕量银的催化动力学光度法研究--银(Ⅰ)-乙二胺-过硫酸铵-还原型酚酞新体系

戴国忠, 蒋治良   

  1. 广西师范大学化学系
  • 收稿日期:1986-03-15 出版日期:1987-08-24 发布日期:1987-08-24

Trace Analysis of Silver by Catalytic-Kinetic Spectrophotometry

Dai Guozhong, Jiang Zhiliang   

  1. Department of Chemistry, Guangxi Normal University, Guilin
  • Received:1986-03-15 Online:1987-08-24 Published:1987-08-24

PDF (PC)

摘要： 催化动力学法测定银的指示反应多为配他体取代反应与氧化还原反应,通常以后者的灵敏度较高,重现性较好,Mueller依据过硫酸钾-对氨基苯磺酸-乙二胺反应体系建立的催化动力学法,其灵敏度达1×10-3μg/ml。

Abstract: In the presence of the activator ethylenediamine, the catalytic effect of Ag+on the coloration reaction based on the oxidation of reduced phenolphthalein with (NH4)2S2O8was studied. Anew catalytic-kineitc spectrophotometric method for determining Ag was developed and its optimum conditions were established. satisfactory result was obtained when the method was applied to trace analysis of Ag in water and waste water.

TrendMD: