Heated Indium Tin Oxide Cell for Studying Ionic Liquid-Mediated Electrochemiluminescence

被引：21

作者：

Chen, Lichan

Chi, Yuwu ^{[1
]}

Zheng, Xiaoxue

Zhang, Yuanjin

Chen, Guonan

机构：

[1] Fuzhou Univ, Key Lab Anal & Detect Food Safety, Minist Educ, Fuzhou 350002, Peoples R China

来源：

ANALYTICAL CHEMISTRY | 2009年 / 81卷 / 06期

关键词：

HEXAFLUOROPHOSPHATE; TEMPERATURE; SOLVENTS;

D O I：

10.1021/ac802302p

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A heated indium tin oxide (ITO) electrochemiluminescent (ECL) cell containing an ITO counter electrode, an ITO reference electrode, and a heated ITO working electrode has been fabricated to promote ionic liquid (IL)-mediated ECL reactions and hence improve sensitivities of IL-based ECL sensors. Heating the ITO working electrode was carried out by applying high-frequency ac voltages, and the temperature of the heated ITO working electrode was calibrated by the redox currents of ferrocenemethanol (FcMeOH) in 1-butyl-3-methylimidazolium hexafluorophosphate (BMIPF6) IL. A significant increase (26 times) in ECL intensity of the luminol-O-2-BMIPF6 system was observed when heating the ITO working electrode from room temperature to 54 degrees C. The use of the developed heated M ECL cell has been demonstrated to be an important way to improve 11,mediated ECL sensitivity and envisioned to enlarge applications of IL-based ECL sensors.

引用

页码：2394 / 2398

页数：5

共 19 条

[1] Ionic liquids in analytical chemistry [J].