Chemical concentrator for rapid vapor detection

Michael W. Geis; Roderick R. Kunz

doi:10.1117/12.357066

2 August 1999 Chemical concentrator for rapid vapor detection

Michael W. Geis, Roderick R. Kunz

Proceedings Volume 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV; (1999) https://doi.org/10.1117/12.357066
Event: AeroSense '99, 1999, Orlando, FL, United States

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.

Citation Download Citation

Michael W. Geis and 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); https://doi.org/10.1117/12.357066

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