Chemiluminescent reaction of sulphite auto-oxidation in the presence of Ni(II)/tetraglycine and ruthenium(II)/bipy complexes:: Mechanistic considerations

被引：5

作者：

Bonifácio, RL ^{[1
]}

Coichev, N ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim, BR-05513970 Sao Paulo, Brazil

来源：

LUMINESCENCE | 2005年 / 20卷 / 06期

关键词：

sulphite; chemiluminescence; nickel; tetraglycine; autoxidation; ruthenium(II); bipyridil;

D O I：

10.1002/bio.868

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The present work is a mechanistic study of the possible analytical chemiluminescent reaction of sulphite oxidation in the presence of dissolved oxygen, Ni(II)/tetraglycine and [Ru-II(bipy)(3)](2+) ions. The Ni(III) complex oxidizes SO32- to SO3.-, reacts with oxygen to produce SO5.-, initiating a radical chain reaction. The strong oxidants generated oxidize Ni(II) and Ru(II) complexes in one redox cycle, which is related to the balance of SO32- and oxygen concentrations. The emission intensity depends on the concentrations of SO32-, Ni(II) and Ru(II) complexes. Copyright (c) 2005 John Wiley & Sons, Ltd.

引用

页码：428 / 434

页数：7

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