Processes and apparatus for detecting the nature of combustion g

Details Processes and apparatus for detecting the nature of combustion g Processes and apparatus for detecting the nature of combustion g

1991-12-10

1993-09-28

Warden, Robert

Chemistry: analytical and immunological testing

Oxygen containing

Molecular oxygen

422 90, 422 94, 422 95, 422 98, 73 232, G01N 2704

Patent

active

052486176

ABSTRACT:
This invention relates to processes and apparatus for detecting the overall nature of combustion gases using a detector comprising a semi-conducting film of a metallic phthalocyanine which is deposited between two electrodes on an insulating wafer and which is placed in contact with the combustion gases and maintained at a temperature higher than a determined threshold, for example higher than 40.degree. C. for a monoclinic copper phthalocyanine, in order to render the phthalocyanine insensitive to the water vapour contained in the combustion gases.

REFERENCES:
patent: 4381922 (1983-05-01), Frey et al.
patent: 4471648 (1984-12-01), Uchida et al.
patent: 4642601 (1987-02-01), Sugawara et al.
Patents Abstracts of Japan vol. 8 JP-A-59-125330.

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