Acta Chimica Sinica ›› 1995, Vol. 53 ›› Issue (6): 590-594. Previous Articles     Next Articles

Original Articles

铜(Ⅱ)催化PHA的褪色反应特性及应用

缪吉根;蔡汝秀;曾云鹗   

  1. 浙江师范大学化学系;武汉大学化学系
  • 发布日期:1995-06-15

The character of PHA decolorizing reaction with copper(Ⅱ) catalysis and its application

MIAO JIGEN;CAI RUXIU;ZENG YUNE   

  • Published:1995-06-15

The decolorizing reaction character of polyhalogenated bisazo derivative of chromotropic acid containing-AsO~3H~2 (PHA) with ascorbic and by copper(Ⅱ) catalysis has been investigated. The influence of reagent structure on decolorizing reaction kinetic character and the reaction mechanism have been discussed. The method for the determination of trace copper(Ⅱ) by using trichloroarsenazo was studied. The detection limit is 3.06×10^-^1^2g/mL and linear range is 0~28ng/10mL for copper(Ⅱ). The method has been applied to the determination of trace copper in bio-material with satisfactory results.

Key words: COLORIMETRIC METHOD, COPPER, COLOUR REAGENTS, CATALYTIC ANALYSIS, KINETIC STUDY

CLC Number: