Method and system for detecting chemical substance
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United States of America Patent
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Sep 4, 2007
Grant Date -
Jun 10, 2004
app pub date -
Jan 17, 2002
filing date -
Jan 19, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A chemical detecting apparatus includes a substrate 10 for chemicals in gas-to-be-monitored to be adsorbed to, a substrate adsorption rate improving means 12 which enhances the adsorption of the chemical in the gas-to-be-monitored to the substrate, an infrared light source 20 which applies an infrared light to the substrate 10 with the chemical adsorbed to, and an infrared light detector 22 which detects the infrared light which has made multiple reflections in the substrate 10 and exited the substrate. Thus, chemicals present in environments can be detected at high speed and with high sensitivity.
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