THE CHARACTER OF PHA DECOLORIZING REACTIO N WITH COPPER(II) CATALYSISAND ITS APPLICATION

Authors
MIAO JG CAI RX ZENG YE
Citation
Jg. Miao et al., THE CHARACTER OF PHA DECOLORIZING REACTIO N WITH COPPER(II) CATALYSISAND ITS APPLICATION, Huaxue xuebao, 53(6), 1995, pp. 590-594
Citations number
NO
Categorie Soggetti
Chemistry
Journal title
Huaxue xuebao → ACNP
ISSN journal
05677351
Volume
53
Issue
6
Year of publication
1995
Pages
590 - 594
Database
ISI
SICI code
0567-7351(1995)53:6<590:TCOPDR>2.0.ZU;2-O
Abstract
The decolorizing reaction character of polyhalogenated bisazo derivati ve of chromotropic acid containing -AsO3H2 (PHA) with ascorbic acid 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 tr ace copper (II) by using trichloroarsenazo was studied. The detection limit is 3.06x 10-(12)g/ mL and linear range is 0 similar to 28ng/ 10m L for copper (II). The method has been applied to the determination of trace copper in bio-material with satisfactory results.