Miniature ion mobility spectrometer detector
- Army Chemical Research, Development and Engineering Center, Aberdeen Proving Ground, MD (United States); and others
A miniaturized ion mobility spectrometer (Mini-IMS) has been fabricated. The device is approximately the size of a remote control for a television set. Compared to conventional hand-held and laboratory IMS devices, a number of important logistic changes have been made. The Mini-IMS unit adheres to the fundamental principles of ion mobility spectrometry with considerably lower power requirements. The device is a sample-on-demand system that uses only passive molecular sieve pumping to effect a dry cell. Internal background, sample scans and difference spectra, in both ion modes are obtained in only 5 sec. Qualitative and quantitative investigations of the new hand-held device reveal major improvements as well as further areas for improvement compared to conventional IMS systems. The vast majority of IMS systems have been constructed for use by the military for defense against chemical warfare--the Chemical Agent Monitor (CAM) is the prime example. Other applications include environmental monitoring, law enforcement (e.g., drug detection) and antiterrorism (e.g., explosives detection).
- OSTI ID:
- 276316
- Report Number(s):
- CONF-950209-; TRN: IM9636%%111
- Resource Relation:
- Conference: 4. international symposium on field screening methods for hazardous wastes and toxic chemicals, Las Vegas, NV (United States), 22-24 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Field screening methods for hazardous wastes and toxic chemicals. VIP-47, Volume 2; PB: 701 p.
- Country of Publication:
- United States
- Language:
- English
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