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Proceedings Paper

Recent developments in the SENTOR drug detection system
Author(s): Gregory J. Wendel; Joseph Richard Jadamec; Chih-Wu Su
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Paper Abstract

Several Law Enforcement Agencies, especially the U.S. Coast Guard R&D Center, have conducted field tests and evaluations of the Thermedics Detection SENTOR drug detector during the past several years. The system has provided valuable information for interdiction operations and has been accepted as evidence in court. While it has been shown to be a highly selective detector, the field tests have revealed that a few specific interferences exist which cause some difficulties in data interpretation. Based on the results obtained from these numerous studies, several different gas chromatography columns with various coatings were evaluated to minimize the impact of these interferences on data interpretation. Gas chromatographic evaluations were conducted employing both laboratory and real world samples. During these column evaluations the SENTOR operating conditions were readjusted to improve the selectivity of the system and these improvements have increased the reliability of the system and reduced the impact of interferences on data interpretation. The improvement of SENTOR will be described. The development of the chromatography will be detailed with examples provided. Data from field and laboratory studies will be presented and discussed.

Paper Details

Date Published: 6 October 1994
PDF: 12 pages
Proc. SPIE 2276, Cargo Inspection Technologies, (6 October 1994); doi: 10.1117/12.189160
Show Author Affiliations
Gregory J. Wendel, Thermedics Detection Inc. (United States)
Joseph Richard Jadamec, U.S. Coast Guard Research and Development Ctr. (United States)
Chih-Wu Su, U.S. Coast Guard Research and Development Ctr. (United States)

Published in SPIE Proceedings Vol. 2276:
Cargo Inspection Technologies
Andre H. Lawrence, Editor(s)

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