| 摘要 |
An apparatus and methods for airborne or gas borne chemical and biological sample collection and detection in real time using optical or chemical techniques, the apparatus comprising a chamber for delivery of said flowing gas stream containing a substance, the chamber comprising a first wall including a first wall surface and a longitudinal inlet channel disposed within the first wall and terminating at an outlet edge at the first wall surface; a second wall including a second wall surface and a longitudinal outlet channel disposed within the second wall and beginning at an outlet edge at the second wall surface, the longitudinal inlet channel aligned with the longitudinal outlet channel, and the first wall surface separated from the second wall surface by a gap; wherein the longitudinal inlet channel the longitudinal outlet channel are adapted for delivering a liquid into the inlet channel, through the chamber, and out the outlet channel such that a gas-liquid interface may be formed in the gap of the chamber.
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