Briglin, Shawn M. and Freund, Michael S. and Sisk, Brian C. and Lewis, Nathan S. (2001) Array-based carbon black-polymer composite vapor detectors for detection of DNT in environments containing complex analyte mixtures. In: Detection and Remediation Technologies for Mines and Minelike Targets VI. Proceedings of SPIE. No.4394. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 912-921. ISBN 0819440892. https://resolver.caltech.edu/CaltechAUTHORS:20180723-112800453
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Abstract
Thin films of carbon black-organic polymer composites have been deposited across two metallic leads, with sorption of vapors producing swelling-induced resistance changes of the detector films. To identify and classify vapors, arrays of such vapor sensing elements have been constructed in which each element of the array contains a different polymer as the insulating phase and a common conductor, carbon black, as the conducting phase. The differing gas-solid partition coefficients for the various polymers of the detector array produce a pattern of differential resistance changes that is used to classify vapors and vapor mixtures. The performance of this detector array system towards 2,4-dinitrotoluene, the predominant signature in the vapor phase above land mines, in the presence high concentrations of water or of acetone has been evaluated.
Item Type: | Book Section | ||||||
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Additional Information: | © 2001 Society of Photo-Optical Instrumentation Engineers (SPIE). We acknowledge an OSD ARO MURI for demining, DOE, and an ARO olfactory research MURI for support of this work. | ||||||
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Subject Keywords: | Land mine signatures, vapor detectors, 2,4-dinitrotoluene, carbon black | ||||||
Series Name: | Proceedings of SPIE | ||||||
Issue or Number: | 4394 | ||||||
DOI: | 10.1117/12.445419 | ||||||
Record Number: | CaltechAUTHORS:20180723-112800453 | ||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180723-112800453 | ||||||
Official Citation: | Shawn M. Briglin, Michael S. Freund, Brian C. Sisk, Nathan Saul Lewis, "Array-based carbon black-polymer composite vapor detectors for detection of DNT in environments containing complex analyte mixtures", Proc. SPIE 4394, Detection and Remediation Technologies for Mines and Minelike Targets VI, (18 October 2001); doi: 10.1117/12.445419; https://doi.org/10.1117/12.445419 | ||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
ID Code: | 88129 | ||||||
Collection: | CaltechAUTHORS | ||||||
Deposited By: | George Porter | ||||||
Deposited On: | 23 Jul 2018 19:46 | ||||||
Last Modified: | 16 Nov 2021 00:24 |
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