2 August 1999 Chemical concentrator for rapid vapor detection
Author Affiliations +
Abstract
This paper presents an innovative microfluidic gas concentrator that uses thermophoresis to concentrate a preselected dilute constituent in air. When used in combination with a gas phase detector, such as an ion mobility spectrometer, the ability of the thermophoretic device to increase the concentration of the target constituent as well as to eliminate other interfering impurities, will substantially increase the sensitivity of the resultant system over the detector alone. The compete sensor could be hand held with an estimated sensitivity of 10-12 to 10-15 atmospheres with detection times of 0.1 to 10 s respectively.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael W. Geis, Roderick R. Kunz, "Chemical concentrator for rapid vapor detection", Proc. SPIE 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV, (2 August 1999); doi: 10.1117/12.357066; https://doi.org/10.1117/12.357066
PROCEEDINGS
12 PAGES


SHARE
RELATED CONTENT

Laser desorption of explosives traces at ambient conditions
Proceedings of SPIE (October 24 2016)
Miniature time-of-flight mass spectrometer
Proceedings of SPIE (May 01 1998)
FAA explosive vapor/particle detection technology
Proceedings of SPIE (April 01 1993)
Microelectrooptical DNA array sensor
Proceedings of SPIE (July 11 2002)

Back to Top