Amplified sensitivity of porous chemosensors based on...

Details Amplified sensitivity of porous chemosensors based on... Amplified sensitivity of porous chemosensors based on...

2011-03-22

2011-03-22

Williams, Hezron (Department: 2856)

Measuring and testing

Gas analysis

Particular separator

Reexamination Certificate

active

07908902

ABSTRACT:
A method of vapor sampling and its delivery to the porous sensory element(s) employed in chemical detectors/sensors for vapor(s) identification and quantification. The sampling and delivery system comprises a flow cell in which a sensory membrane is placed parallel to the flow, while an additional flow normal to the membrane is introduced using the Bernoulli effect. The bi-directional flow of vapors increases the interactions between the sensory material and vapor molecules, and enhances sensitivity.

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