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Proceedings Paper

Recognition and quantitation of closely related chlorinated organic vapors with acoustic-wave chemical sensor arrays
Author(s): Radislav A. Potyrailo; Ralph J. May; Timothy M. Sivavec
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Paper Abstract

An array of four acoustic wave chemical sensors has been developed and tested for recognition and quantitation of six closely related chlorinated organic vapors at low part-per- million concentrations. These vapors include PCE, TCE, VC, and DCE, cis-1,2-DCE, trans-1,2-DCE, and 1,1-DCE. The developed sensor array can detect as little as 0.2 ppm of PCE, 0.8 ppm of TCE, 1.4 ppm of cis-1,2-DCE, 1.4 ppm of trans-1,2-DCE, 3 ppm of 1,1-DCE, and 3.5 ppm of VC in air. Quantitation of TCE and cis-1,2-DCE vapor mixtures was achieved using multivariate calibration techniques. The locally weighted regression analysis provides more accurate results over the partial least squares regression.

Paper Details

Date Published: 23 November 1999
PDF: 8 pages
Proc. SPIE 3856, Internal Standardization and Calibration Architectures for Chemical Sensors, (23 November 1999); doi: 10.1117/12.371310
Show Author Affiliations
Radislav A. Potyrailo, GE Corporate Research and Development Ctr. (United States)
Ralph J. May, GE Corporate Research and Development Ctr. (United States)
Timothy M. Sivavec, GE Corporate Research and Development Ctr. (United States)


Published in SPIE Proceedings Vol. 3856:
Internal Standardization and Calibration Architectures for Chemical Sensors
Ronald E. Shaffer; Radislav A. Potyrailo, Editor(s)

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