Thin film trichloroethylene electrochemical sensor

Min Hua Chen, Chung Chiun Liu, Tse Chuan Chou

研究成果: 雜誌貢獻期刊論文同行評審

7 引文 斯高帕斯(Scopus)

摘要

Pt-Ti and Pb-Pt-Ti thin films were deposited on alumina substrates by sputtering in Ar gas. In this study, an electrodeposited Pb-modified Pt-Ti thin film working electrode was prepared. Optimal sensing conditions were found to be -2.10 V (versus Ag/Ag+ with 0.1 M tetrabutylammonium perchlorate (TBAP) in acetonitrile (AN) solution) sensing potential, 250 rpm agitation rate. At room temperature, the response time was 15 s (90% response time). The correlation of sensing response current, id, and trichloroethylene (TCE) concentration, CL, is id=2.86CL in the range from 100 to 700 ppm TCE. Additionally, the rate constant of (TCE) cathodic reduction was found to be 2.434×10-3 cm-1 s -1.

原文???core.languages.en_GB???
頁(從 - 到)25-32
頁數8
期刊Biosensors and Bioelectronics
20
發行號1
DOIs
出版狀態已出版 - 30 7月 2004

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