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 |
卷 | 20 |
發行號 | 1 |
DOIs | |
出版狀態 | 已出版 - 30 7月 2004 |