Method of analyzing organic chemical substances and...

Details Method of analyzing organic chemical substances and... Method of analyzing organic chemical substances and...

2004-12-03

2011-10-25

Larkin, Daniel (Department: 2856)

Measuring and testing

Gas analysis

Gas chromatography

Reexamination Certificate

active

08042379

ABSTRACT:
A combination of a liquid chromatograph and a gas chromatograph was a possible measure for improving precision in analyzing organic chemical substances. However, because elutes from liquid chromatoghaphies contain water and a highly polar solvent, injection thereof into a gas chromatograph has been impossible. Consequently, to develop an analytical method which realizes that combination and an apparatus thereof has been a subject. The method of the quantitative analysis comprises subjecting a sample for analysis prepared beforehand by extracting organic chemical substances from an assay sample to fractionation by a liquid chromatograph, continuously adsorbing a fractionated elute containing a substance to be determined onto a solid-phase cartridge while conducting the fractionation, eluting this substance, which has been adsorbed on the solid-phase cartridge, with an eluent, and transferring the elute to a storage chamber of a gas chromatograph.

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