Chemically sensitive component

Details Chemically sensitive component Chemically sensitive component

1986-02-26

1989-09-05

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 91, 422 52, 422 56, 422 57, 436169, 436172, G01N 2177

Patent

active

048636940

ABSTRACT:
The present invention is directed to a chemically sensitive component including an optical filter that reversibly changes color or transparency in response to a gas or vapor to be determined or detected. The optical filter comprises a mixture of a basic or acid color former or dye of the triphenyl methane system and a complementary acid or basic compound which may be embedded in a matrix and/or applied as a coating to a carrier. The optical filter's change in color or transparency can be measured photoelectronically, e.g., with a luminescent diode as a light source and a photodiode or a phototransistor as a light detector.

REFERENCES:
patent: 3114610 (1963-12-01), Gafford et al.
patent: 3397966 (1968-08-01), Plantz
patent: 3455656 (1969-07-01), Roberts et al.
patent: 3754867 (1973-08-01), Guenther
patent: 3873269 (1975-03-01), Kraffczyk et al.
patent: 3920402 (1975-11-01), Afanasiev et al.
patent: 4115067 (1978-09-01), Lyshkow
patent: 4248597 (1981-02-01), McNeely
patent: 4251223 (1981-02-01), White
patent: 4258000 (1981-03-01), Obermayer
patent: 4362645 (1982-12-01), Hoff et al.
patent: 4398183 (1983-08-01), Ando
patent: 4407960 (1983-10-01), Tratnyek
patent: 4436819 (1984-03-01), Manning
patent: 4447542 (1984-05-01), Gantzer
patent: 4478792 (1984-10-01), McConnaughey et al.
patent: 4485665 (1984-12-01), Norman
patent: 4567019 (1986-01-01), Lawton
patent: 4587100 (1986-05-01), Amano et al.

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