Title :
Microfabricated gas phase chemical analysis systems
Author :
Frye-Mason, Gregory C. ; Manginell, Ronald P. ; Heller, Edwin J. ; Matzke, Carolyn M. ; Casalnuovo, Stephen A. ; Hietala, Vincent M. ; Kottenstette, Richard J. ; Lewis, Patrick R. ; Wong, C. Channy
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
Abstract :
A portable, autonomous, hand-held chemical laboratory (/spl mu/ChemLab/sup TM/) is being developed for trace detection (ppb) of chemical warfare (CW) agents and explosives in real-world environments containing high concentrations of interfering compounds. Microfabrication is utilized to provide miniature, low-power components that are characterized by rapid, sensitive and selective response. Sensitivity and selectivity are enhanced using two parallel analysis channels, each containing the sequential connection of a front-end sample collector/concentrator, a gas chromatographic (GC) separator, and a surface acoustic wave (SAW) detector. Component design and fabrication and system performance are described.
Keywords :
chromatography; gas sensors; micromachining; portable instruments; surface acoustic wave sensors; chemical warfare agents; explosives; gas chromatographic separator; gas phase chemical analysis; hand-held chemical laboratory; microfabrication; miniature low-power components; parallel analysis channels; real-world environments; selective response; surface acoustic wave detector; Acoustic signal detection; Acoustic waves; Chemical analysis; Chemical compounds; Detectors; Explosives; Fabrication; Particle separators; Surface acoustic waves; System performance;
Conference_Titel :
Microprocesses and Nanotechnology Conference, 1999. Digest of Papers. Microprocesses and Nanotechnology '99. 1999 International
Conference_Location :
Yokohama, Japan
Print_ISBN :
4-930813-97-2
DOI :
10.1109/IMNC.1999.797476
