Gas chromatographic analysis method and apparatus

Details Gas chromatographic analysis method and apparatus Gas chromatographic analysis method and apparatus

1978-09-29

1980-11-18

Serwin, R. E.

Chemistry: physical processes

Physical processes

Crystallization

23232C, 422 78, 422 89, G01N 3108, G01N 3112

Patent

active

042343151

ABSTRACT:
A quantitative analysis system is provided wherein a sample is decomposed in a decomposition chamber, the reaction product mixture is passed to a first chromatographic zone wherein a first separation of the reaction mixture is carried out, the last major component eluting from the first chromatographic zone is measured and then vented, the first major components eluting from the first chromatographic zone are passed to a second chromatographic zone and the products eluting therefrom are measured. Alternatively, the first major component eluting from the second chromatographic zone can be passed to a third chromatographic zone for greater resolution, followed by measurement thereof, in which case the second major component eluting from the second chromatographic zone is vented.
A method is provided for the analysis for C, H and N by gas chromatography. A method is also provided for the analysis for oxygen, alone, and for oxygen and sulfur by gas chromatography.

REFERENCES:
patent: 3141323 (1964-07-01), Taylor et al.
patent: 3304159 (1967-02-01), Hinsvark
patent: 3385101 (1968-05-01), Roof
patent: 3425807 (1969-02-01), Levy
patent: 3428432 (1969-02-01), Staunton et al.
patent: 3518059 (1970-06-01), Levy
patent: 3756781 (1973-09-01), Kimbell
patent: 3838969 (1974-10-01), Dugan
patent: 3992175 (1976-11-01), Klementi et al.
General College Chemistry, Richardson and Scarlett, Henry Holt Co., New York, 1940, p. 375.

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