Electrogenerated chemiluminescence reaction of tris(2,2'-bipyridine)ruthenium(II) with 2,5-dimethylthiophene as co-reactant in aqueous solution

被引：7
作者：
Kodamatani, Hitoshi [2 ]
Komatsu, Yu [3 ]
Yamazaki, Shigeo [4 ]
Saito, Keiitsu [1 ]
机构：
[1] Kobe Univ, Analyt Chem Lab, Div Human Environm, Grad Sch Human Dev & Environm,Nada Ku, Kobe, Hyogo 6578501, Japan
[2] Kagoshima Univ, Fac Sci, Dept Earth & Environm Sci, Kagoshima 8900065, Japan
[3] Kanazawa Inst Technol, Environm Res Inst, Haku San 9240838, Japan
[4] Okayama Univ Sci, Dept Appl Sci, Okayama 7000005, Japan
来源：
ANALYTICA CHIMICA ACTA | 2008年 / 622卷 / 1-2期
关键词：
electrogenerated chemiluminescence; tris(2,2'-bipyridine)ruthenium(II); 2,5-dimethylthiophene; tri-n-propylamine;
D O I：
10.1016/j.aca.2008.05.050
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel effective co-reactant for electrogenerated chemiluminescence (ECL) of Ru(bPY)32, has been found. a -Position- dialkylated thiophene derivatives such as 2,5dimethylthiophene (DMT) could be used as a co-reactant for Ru(bpy)3 21 ECL. The reaction mechanism of the Ru(bPY)3 2+/DMT system was proposed on the basis of the identification of the reaction product, the relationship between the molecular structure and the chemiluminescent intensity, and the electrochemical study. The obtained reaction mechanism was similar to that of the Ru(bPY)32+/aliphatic tertiary amine system. Based on these results, the preliminary studies of the Ru(bPY)32' ECL detection system using DMT as a co-reactant were performed. Under the optimal ECL conditions, the plot of ECL intensity versus the concentration of Ru(bPY)32, was linear over the concentration range 1.0 X 10-8 to 1. 5 X 10-7 M (determination coefficient= 0.9996). (c) 2008 Elsevier BY. All rights reserved.
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页码：119 / 125
页数：7
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