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Proceedings Paper

Sorbent coatings for detection of explosives vapor: applications with chemical sensors
Author(s): Eric J. Houser; Robert Andrew McGill; Todd E. Mlsna; Viet K. Nguyen; Russell Chung; Robert L. Mowery
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Paper Abstract

A series of chemoselective polymers have been designed and synthesized in order to enhance the nitroaromatic sorption properties of coated acoustic wave devices. Acoustic wave devices coated with a thin layer of chemiselective polymer can provide highly sensitive transducers for the detection of vapors or gases. The sensitivity and selectivity of the sensor depends on several factors including the chemoselective coating used, the physical properties of the vapor(s) of interest, the selected transducer, and the operating conditions. To evalute the effectiveness of the chemoselective coatings a polynitroaromatic vapor test bed was utilized to challenge polymer coated SAW devices. Detection limits with the coated SAW sensors, as tested under laboratory conditions, are determined to be in the lower parts per trillion range. FTIR studies were undertaken to determine the nature of the polymer-polynitroaromatic interactions.

Paper Details

Date Published: 2 August 1999
PDF: 8 pages
Proc. SPIE 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV, (2 August 1999); doi: 10.1117/12.357062
Show Author Affiliations
Eric J. Houser, Naval Research Lab. (United States)
Robert Andrew McGill, Naval Research Lab. (United States)
Todd E. Mlsna, Geo-Centers, Inc. (United States)
Viet K. Nguyen, Geo-Centers, Inc. (United States)
Russell Chung, Geo-Centers, Inc. (United States)
Robert L. Mowery, Naval Research Lab. (United States)

Published in SPIE Proceedings Vol. 3710:
Detection and Remediation Technologies for Mines and Minelike Targets IV
Abinash C. Dubey; James F. Harvey; J. Thomas Broach; Regina E. Dugan, Editor(s)

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