Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1994-08-29
1996-02-27
Alexander, Lyle A.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 681, 422 8208, 422 8209, 436 68, 436102, 436106, 436109, 436113, 436119, 436164, 436167, 204415, 204418, G01N 3384, G01N 3122
Patent
active
054946409
ABSTRACT:
A sensor device is disclosed for identification of a gaseous component in a gaseous or liquid sample. The sensor device comprises an optode membrane having sensitivity for the gaseous component to be identified. The optode membrane incorporates two ionophores, at least one of which is a chromoionophore capable of changing absorption spectrum. The sensor device further comprises a hydrophobic gas-permeable membrane, one side of which is positioned upon the optode membrane to prevent direct contact of the optode membrane with the liquid or gaseous sample while still permitting passage of the gaseous component to be identified. As a result, ionic compounds incapable of passing through the lipophilic gas-permeable membrane do not interfere with the identification process leading to a highly sensitive sensor.
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File "Registry" Search Report, Apr. 1995, Copyright .COPYRGT.1995 American Chemical Society (ACS).
Ozawa Satoshi
Simon Wilhelm
Alexander Lyle A.
Hitachi , Ltd.
Le Long V.
Simon Wilhelm
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