MICROSCALE COLLECTOR-INJECTOR TECHNOLOGIES FOR PASSIVE ENVIRONMENTAL VAPOR SAMPLING AND FOCUSED INJECTION

A microscale collector and injector device comprises a microscale passive pre-concentrator (μPP) and a microscale progressively-heated injector (μPHI). The μPP devices comprises first and second substrate portions, a first collection material, a μPP heater, and an outlet. The first substrate portion...

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Hauptverfasser:	POTKAY, Joseph A, ZHAN, Changhua, ZELLERS, Edward T, HOWER, Robert W
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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creator	POTKAY, Joseph A ZHAN, Changhua ZELLERS, Edward T HOWER, Robert W
description	A microscale collector and injector device comprises a microscale passive pre-concentrator (μPP) and a microscale progressively-heated injector (μPHI). The μPP devices comprises first and second substrate portions, a first collection material, a μPP heater, and an outlet. The first substrate portion defines an array of microscale diffusion channels. The first and second substrate portions cooperate to define a first compartment in fluid communication with the diffusion channels. The first collection material is disposed within the first compartment, at least partially surrounding the outlet. The μPP heater is disposed in thermal communication with the second substrate portion. The μPHI device comprises third and fourth substrate portions, a second collection material, and a plurality of μPHI heaters. The third and fourth substrate portions cooperate to define a second compartment. The second collection material is disposed within the second compartment. The μPHI heaters are disposed in thermal communication with the second compartment.
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subjects	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
title	MICROSCALE COLLECTOR-INJECTOR TECHNOLOGIES FOR PASSIVE ENVIRONMENTAL VAPOR SAMPLING AND FOCUSED INJECTION
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