Method and apparatus for precise control of vapor phase concentr

Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition

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53 79, 53 97, 73 1G, 73 19, 73 23, 2524081, 252372, 422 5, 422 88, 422103, 424 2, 424 76, 436 9, 422123, B01L 500, C09K 300, G01N 122, A61L 904

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043882722

ABSTRACT:
A method and apparatus for precise control of vapor phase concentrations of volatile organic compounds is provided which utilize desorption of monolayers of the organic compound from a solid adsorbent. The method and apparatus can be used for measuring human olfactory system performance, for calibration of analytical chemical instruments, and in other applications.

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patent: 3854319 (1974-12-01), Burroughs et al.
patent: 3951855 (1976-04-01), Principe et al.
patent: 3997296 (1976-12-01), Miller
patent: 4003257 (1977-01-01), Fletcher et al.
patent: 4080170 (1978-03-01), Borkenstein
patent: 4146566 (1979-03-01), Gaiser
patent: 4277251 (1981-07-01), Leichnitz

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