Recognition and quantitation of closely related chlorinated organic vapors with acoustic-wave chemical sensor arrays

Radislav A. Potyrailo; Ralph J. May; Timothy M. Sivavec

doi:10.1117/12.371310

23 November 1999 Recognition and quantitation of closely related chlorinated organic vapors with acoustic-wave chemical sensor arrays

Radislav A. Potyrailo, Ralph J. May, Timothy M. Sivavec

Author Affiliations +

Proceedings Volume 3856, Internal Standardization and Calibration Architectures for Chemical Sensors; (1999) https://doi.org/10.1117/12.371310
Event: Photonics East '99, 1999, Boston, MA, United States

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.

Citation Download Citation

Radislav A. Potyrailo, Ralph J. May, and Timothy M. Sivavec "Recognition and quantitation of closely related chlorinated organic vapors with acoustic-wave chemical sensor arrays", Proc. SPIE 3856, Internal Standardization and Calibration Architectures for Chemical Sensors, (23 November 1999); https://doi.org/10.1117/12.371310

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