Abstract
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 x 10(-3) cm(-1) s(-1).
Publication types
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Evaluation Study
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Research Support, Non-U.S. Gov't
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Validation Study
MeSH terms
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Biosensing Techniques / instrumentation
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Biosensing Techniques / methods*
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Coated Materials, Biocompatible / chemistry
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Complex Mixtures / analysis
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Complex Mixtures / chemistry
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Electrochemistry / instrumentation
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Electrochemistry / methods*
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Electrodes*
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Environmental Monitoring / instrumentation
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Environmental Monitoring / methods
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Equipment Design
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Equipment Failure Analysis
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Lead / chemistry*
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Membranes, Artificial
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Oxidation-Reduction
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Platinum / chemistry*
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Reproducibility of Results
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Sensitivity and Specificity
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Titanium / chemistry*
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Transducers
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Trichloroethylene / analysis*
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Trichloroethylene / chemistry
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Water Pollutants, Chemical / analysis
Substances
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Coated Materials, Biocompatible
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Complex Mixtures
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Membranes, Artificial
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Water Pollutants, Chemical
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Trichloroethylene
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Lead
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Platinum
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Titanium