Electrochemiluminescence in aqueous solution of a ruthenium(II) bipyridyl complex containing a crown ether moiety in the presence of metal ions

被引：15

作者：

Bruce, D ^{[1
]}

Richter, MM ^{[1
]}

机构：

[1] SW Missouri State Univ, Dept Chem, Springfield, MO 65804 USA

来源：

ANALYST | 2002年 / 127卷 / 11期

关键词：

D O I：

10.1039/b206514m

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Changes in electrochemiluminescence (ECL) properties of a ruthenium polyazine compound containing a crown-ether moiety have been investigated in aqueous buffered solution. The electrochemistry, photophysics and ECL of (bpy)(2)Ru(AZA-bpy)(2+) [bpy = 2,2'-bipyridine; AZA-bpy = 4-(N-aza-18-crown-6-methyl-2,2'-bipyridine)] in the presence of Pb2+, Hg2+, Cu2+ and Ag+ are reported. Oxidation of (bpy)(2)Ru(AZA-bpy)(2+) produces ECL in the presence of tri-n-propylamine (TPrA; 0.2 M KH2PO4). Increases in ECL efficiency (photons generated per redox event) greater than 2-fold have been observed that depend on both the concentration and nature of the metal ion, allowing the determination of ions not directly involved in the ECL reaction sequence.

引用

页码：1492 / 1494

页数：3

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