On-line coupled liquid and gas chromatography system with an...

Details On-line coupled liquid and gas chromatography system with an... On-line coupled liquid and gas chromatography system with an...

G - Physics

01

N

73/93

G01N 30/02 (2006.01) G01N 30/46 (2006.01) G01N 30/16 (2006.01)

Patent

CA 1256714

ABSTRACT Apparatus and method for on-line coupled liquid chromatography and gas chromatography analysis. The system includes a high-volume, liquid vaporizing chamber, or interface capillary tube which allows injection of a substantial volume of sample-carrying eluent and concentrates bands, obviating adverse effects on the resolution or peak shape of the components of interest. The vaporizing chamber is interposed between a packed or wall-coated open tubular liquid chromatographic column and a gas chromatographic column. The liquid column permits the use of small volumes of eluent and reduced flow rates.

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