POLYPYRROLE ELECTRODE AS A DETECTOR OF ANIONIC SUBSTANCES

被引:40
作者
IKARIYAMA, Y [1 ]
GALIATSATOS, C [1 ]
HEINEMAN, WR [1 ]
YAMAUCHI, S [1 ]
机构
[1] UNIV CINCINNATI,DEPT CHEM,CINCINNATI,OH 45221
来源
SENSORS AND ACTUATORS | 1987年 / 12卷 / 04期
关键词
ORGANIC COMPOUNDS - Films;
D O I
10.1016/0250-6874(87)80064-1
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A polypyrrole film coated by electrochemical polymerization on a platinum surface has been demonstrated as an electrochemical detector for the flow-through analysis of ionic substances. Anion detection is based on the doping and conductivity properties of the conductive polymer. Anions are detectable at concentrations as low as 1 mu M with the use of a glycine solution as a mobile phase solution. The potential of the electrode is controlled at plus 0. 6 V (versus Ag/AgCl reference electrode) during the analysis. With the use of a polymer electrolyte solution as a mobile buffer solution, anions are detected at concentrations as low as 100 mu M.
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页码:455 / 461
页数:7
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