Sorption/desorption method and apparatus

Chemistry: analytical and immunological testing – Including chromatography

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422 88, 422 89, 55 34, 55 60, 55 62, 55181, 55208, B01D 5306, B01D 5308

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048659967

ABSTRACT:
A gas analysis apparatus including a sorption bed and a receiver normally spaced apart from the sorption bed. A given flow path is defined between the sorption bed and the receiver for directing a gas to be analyzed across the sorption bed for adsorption thereby in an adsorption mode of operation of the apparatus. A drive relatively moves the sorption bed and the receiver closer together from their spaced apart condition to produce a volume reduction of the defined, given flow path across the sorption bed in a desorption mode of operation of the apparatus. A heater selectively heats the sorption bed to desorb the adsorbed gas from the bed into the volume reduced flow path. A gas analyzer is connected to the receiver for analyzing the desorbed gas.

REFERENCES:
patent: 3149941 (1964-09-01), Barnitz et al.
patent: 3176446 (1965-04-01), Siggelin
patent: 4249904 (1981-02-01), Rounbehler et al.
patent: 4409006 (1983-10-01), Mattia
patent: 4711765 (1987-12-01), Cates et al.

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