Development and application of novel thin-film spectroelectrochemical sensors possessing three modes of selectivity

被引：5

作者：

Heineman, WR

Seliskar, CJ

Richardson, JN

机构：

[1] Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA

[2] Shippensburg Univ, Dept Chem, Shippensburg, PA 17257 USA

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2003年 / 39卷 / 08期

关键词：

thin-film spectroelectrochemical sensors; selectivity; chemically selective films;

D O I：

10.1023/A:1025116524789

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A thin-film spectroelectrochemical sensor design employing three modes of selectivity is described. Selectivity is achieved through (1) partitioning of the analyte into a chemically selective film, (2) electrochemical cycling of the analyte over a given potential window, and (3) absorbance of one of the redox states of the analyte at the chosen analytical wavelength. Optimization of the sensor is described with respect to both improved selectivity and sensitivity, as well as its response to a number of different chemical species. Lastly, application of the sensor for determination of ferrocyanide, Fe(CN)(6)(4-), in both radioactive waste simulant and actual waste storage tank contents is given.

引用

页码：884 / 893

页数：10

共 47 条

[1] ELECTROCHEMICAL CONTROL OF THE LUMINESCENT LIFETIME OF RU(BPY)32+STAR INCORPORATED IN NAFION FILMS ON GRAPHITE-ELECTRODES [J].