Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1987-08-17
1989-07-25
Hill, Jr., Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 55, 422 58, 436 68, 436133, 436163, 436167, 436172, 436178, 356 39, 2504591, 2504611, 128634, G01N 2177
Patent
active
048511951
ABSTRACT:
A sensor for determining the partial pressure of carbon dioxide in a liquid, which comprises a carbon dioxide - permeable, liquid and ion-impermeable membrane enveloping an aqueous medium containing an absorber, a fluorescer and a source of bicarbonate ions, which medium exhibits variations in pH as a function of the partial pressure of dissolved carbon dioxide, the ratio of absorber to fluorescer and the characteristics of the absorption spectrum of the absorber and the excitation and emission spectra of the fluorescer being such that the partial pressure of carbon dioxide in the liquid may be determined from the pH of the aqueous medium as measured by the intensity of the fluorescent emission of the fluorescer.
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Matthews Richard S.
Witherell, Jr. Frederick E.
Akers Lawrence C.
Dryer Mark
Griffith Rebekah A.
Hill Jr. Robert J.
Pfizer Hospital Products Group Inc.
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