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- W2050873489 abstract "This paper describes the development and calibration of a portable air sampler for detecting chemical vapors. The air sampler is equipped with a preconcentrator, a battery operated mini-pump, a three-way valve, capacitive sensors housed in a sensing chamber, and a data acquisition and control circuit board. The preconcentrator is used to adsorb trace level chemicals and to thermally desorb them into the sensing chamber. The air sampler was calibrated using known concentrations of ethylbenzene vapor generated by an Environics gas mixing system. The air sampler was also tested using low concentration toluene and ethanol vapors generated by diffusion based vapor generation device. The concentration factor of the preconcentrator was experimentally determined." @default.
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- W2050873489 date "2009-10-30" @default.
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- W2050873489 title "Development and Calibration of a Portable Air Sampler" @default.
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- W2050873489 doi "https://doi.org/10.1080/10601320903340374" @default.
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