北京生物医学工程2012，Vol.31Issue(4)：402-406,5.DOI:10.3969/j.issn.1002-3208.2012.04.14.
Tween20对联吡啶钌电化学发光的增敏作用
Sensitization of Tween 20 on Ru(bpy)2+3 electrochemiluminescence
摘要
Abstract
To improve the sensitivity of the Ru( bpy) 2 3 + electrochemiluminescence ( ECL) detection, the sensitization of nonionic surfactant Tween 20 on the ECL of Ru(bpy)3 2+ was studied. Methods The concentration of Tween 20 added was optimized firstly. In the optimum concentration of Tween 20 as 0. 1% , the sensitivity, linear range and repeatability of Ru(bpy)3 2+ were tested. Then, the effects of Tween 20 on the electrochemical behavior of tripropylamine were discussed. Results When the concentration of Tween 20 was 0. 1% , the sensitization on the ECL was best. In this concentration, the sensitivity of Ru ( bpy) 3 2 + increased 100 times, and there was a good linear relationship between the concentration of Ru( bpy) 3 2 + and ECL intensity in the range of 5 x 10 to 1 x 10 mol/L. Moreover, Tween 20 could promote the direct oxidation of tripropylamine on the electrode surface and enhance the oxidation current. Conclusions Tween 20 has strong sensitization of on the ECL of Ru ( bpy ) 3 2 +关键词
Ru(bpy)2+3/电化学发光/Tween/20/增敏效应Key words
Ru(bpy)3 2 + / electrochemiluminescence/ Tween 20/ enhancement effect分类
医药卫生引用本文复制引用
李志英,王捷,许喜林,陈健,刘仲明..Tween20对联吡啶钌电化学发光的增敏作用[J].北京生物医学工程,2012,31(4):402-406,5.基金项目
2009年广东省科技计划(2009B030801280)、2010广东省教育部产学研结合项目(2010B090400187)资助 （2009B030801280）
