Liquid sampling valve for gas chromatograph

Details Liquid sampling valve for gas chromatograph Liquid sampling valve for gas chromatograph

G - Physics

01

N

73/93

G01N 1/10 (2006.01) G01N 30/20 (2006.01)

Patent

CA 1299893

ABSTRACT A liquid sampling valve for a gas chromatographic analyser (GCA) has a sampling stem. The stem is substantially cylindrical and has on its surface a sample collecting groove. The stem is movable from a first position in which said groove is in communication with the liquid to be analyzed for collection of same, to a second position in which said liquid collected in said groove is deposited in said GCA for analysis. The stem is also movable to a third position in which the groove is in communication with a cleaning solution capable of cleaning residues, which are left by said liquid to be analyzed, in said groove.

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