Detection process

Details Detection process Detection process

G - Physics

01

N

31/162, 150/20,

G01N 27/04 (2006.01) G01N 27/12 (2006.01) G08B 17/117 (2006.01)

Patent

CA 1127944

ABSTRACT A process for the qualitative and quantitative detection of the presence in the atmosphere of gases formed by complete or incomplete combustion, of changes in temperature, of infra-red irradiation, or, more generally, of emanations from any gaseous or liquid agent, wherein the detection is based on the variation in the electrical resistance of at least one semiconductor due to the action of a gaseous or liquid agent, temperature, and/or infra-red irradiation, and wherein at least one organic semiconductor is chosen from the series comprising porphyrins and in particular phthalocyanines, bonded or not to a central metal clement that is either a transitional element or a lanthanide or an element of the main groups, and wherein a highly accurate detection is carried out based on at least one parameter.

298064

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