Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1989-11-01
1991-01-08
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
338 34, 422 98, 436111, 436114, H01C 700, G01N 2700, G01N 2704, G01N 3300
Patent
active
049833600
ABSTRACT:
The present invention relates, a compound for use with selective detectors of the semiconductor resistance type which detect for nitrogenous reducing gases in the atmosphere, especially ammonia and gases containing NH and/or NH.sub.2 groups, said compound comprising the gallium nitride and, oxynitrides of tetrahedral structure according to the general formula: ##EQU1## in which: .quadrature. represents a hole, and 0.ltoreq.x.ltoreq.0.3.
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Colin Yves
Guyader Jean
Laurent Yves
Merdrignac Odile
Verdier Patrick
Centre National de la Recherche Scientifique
Vassilatos Thalia P.
Warden Robert J.
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