Method and device for determining the organic carbon content of

Details Method and device for determining the organic carbon content of Method and device for determining the organic carbon content of

1982-07-26

1985-05-28

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

422 80, 422 89, 422 93, 436145, 436155, 436157, 436160, G01N 3112

Patent

active

045199833

ABSTRACT:
A method and apparatus for determining the total amount of organic carbon in a sample comprising the successive steps of: (a) heating the sample in an inert atmosphere to a first temperature capable of cracking at least a fraction of the organic material contained in the sample; (b) measuring the amount of organic carbon contained in at least a fraction of the effluent resulting from this cracking; (c) heating the sample in an oxidizing atmosphere to a second temperature at most equal to the first temperature; (d) measuring the amount of organic carbon in the effluent produced by the oxidation of the organic material, and (e) deriving from the above measurements the total organic carbon content of the sample. In order to perform the method of the invention, there is also provided means for performing each of the successive steps. In a further refinement, the method also includes steps for determining the mineral carbon content so that the total carbon content of the sample can be determined.

REFERENCES:
patent: 2427261 (1947-09-01), Crawford
patent: 3861874 (1975-01-01), Krc
patent: 3953171 (1976-04-01), Espitalie et al.
patent: 3954408 (1976-05-01), Dugger
patent: 4040789 (1977-08-01), Voss et al.
patent: 4098576 (1978-07-01), Judge
patent: 4213763 (1980-07-01), Madec et al.
patent: 4229181 (1980-10-01), Espitalie et al.

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