Cathodic electrochemiluminescence of Eosin Y-peroxydisulfate system and its analytical application for determination of guanine

被引：7

作者：

Zhu, Yinggui ^{[1
]}

Liu, Junying ^{[1
]}

Chen, Kun ^{[1
]}

Shu, Guibo ^{[1
]}

Yang, Yu ^{[1
]}

机构：

[1] Anhui Normal Univ, Coll Chem & Mat Sci, Wuhu 241000, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2013年 / 689卷

基金：

中国国家自然科学基金;

关键词：

Cathodic electrochemiluminescence; Eosin Y; Peroxydisulfate; Guanine; PURELY AQUEOUS-SOLUTION; ELECTROGENERATED CHEMILUMINESCENCE; THIN-FILMS; RU(BPY)(3)(2+); NUCLEOSIDES; PERFORMANCE; ELECTRODES; COMPOSITE; BEHAVIOR;

D O I：

10.1016/j.jelechem.2012.11.017

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The cathodic electrochemiluminescence (ECL) behavior of Eosin Y (EY)-peroxydisulfate (S2O82-) system at a glassy carbon electrode (GCE) was studied under cyclic voltammetric conditions. Two strong ECL peaks, ECL-1 and ECL-2 were observed in cathodic and anodic scan process respectively under the potential scan range 0 to -2.0 V. The effects of pH value, S2O82- concentration on the ECL intensity were investigated and the possible mechanism for the ECL behavior of EY-S2O82- system was proposed. Based on the stable cathodic ECL of EY-S2O82- system and quenching effect of guanine on the ECL-1 and ECL-2 intensity simultaneously, the logarithmic plot of the inhibited ECL-1 and ECL-2 versus logarithmic plot of the concentration of guanine was linear over the range of 5.0 x 10(-6)-1.0 x 10(-4) mol/L with a correlation coefficient of 0.998 and 0.996, respectively. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：46 / 50

页数：5

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