Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1982-03-05
1985-06-25
Marcus, Michael S.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
422 70, 422 89, 422 93, 436115, 436131, 436133, 436155, 436157, 436149, 436159, G01N 122, G01N 3110, G01N 3112
Patent
active
045253285
ABSTRACT:
The specification discloses an analyzer for determining the carbon, hydrogen, and nitrogen content of an organic material. The analyzer includes a vertically oriented, U-shaped furnace including a combustion chamber containing a crucible in which the sample is combusted into constituent gases and a reagent chamber containing a reagent through which the constituent gases must pass. A lance extends into the combustion chamber to guide the sample into the crucible and to direct oxygen onto the sample combusting in the crucible. The analyzer further includes an equilibration vessel and means for conveying the constituent gases to the vessel and past CO.sub.2 and H.sub.2 O infrared cells to monitor the products of combustion. Means are provided for conveying the equilibrated gases past the infrared cells to obtain readings relating to carbon and hydrogen content. A doser doses an aliquot of the equilibrated gas into a nitrogen measurement apparatus to obtain a reading relating to nitrogen content.
REFERENCES:
patent: 3296435 (1967-01-01), Teal et al.
patent: 3698869 (1972-10-01), Condon
patent: 3918911 (1975-11-01), Reich
patent: 4271124 (1981-06-01), Speeter
patent: 4401763 (1983-08-01), Itoh
Leco Corporation
Marcus Michael S.
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