A miniature, integrated chemical Iabaratory ().lChcmLab) is being developed that utilizes microfabrication to provide faster response, smaller size, lower power Operation, and an ability to utilize multiple analysis channels for enhanced versatility and chemical discrimination. Improved sensitivity and selectivity are achieved with three cascaded components: ( l) a sample collector/concentrator, (2) a gas chromatographic (GC) Separator, and (3) a chemically selective surface acoustic wave (SA W) array detector. Prototypes of all three components have been developed and demonstrated both individually and when integrated on a novel electrical and fluidic printed circuit board. A hand-held autonomaus system containing two analysis channels and all supporting electronics and user interfaces is currently being assembled and tested.

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