Liquid sample injection system for gas chromatography

Details Liquid sample injection system for gas chromatography Liquid sample injection system for gas chromatography

1980-04-14

1982-12-07

Kreitman, Stephen A.

Measuring and testing

Gas analysis

Gas chromatography

G01N 3108

Patent

active

043620469

ABSTRACT:
An improvement in the method of injection of liquid into an industrial device for separation by gas chromatography by means of a vaporizer swept by a vector, the liquid being brought to the vaporizer by a pipe containing a valve which, when opened and closed, permits the injection at a given rate of flow, of the predetermined quantity of liquid, the rapid purge of the fluids contained in the vaporizer and the adjacent ducts at the end of the injection, and the continuous slow purge between injections being insured by a system of valves, wherein the instantaneous vaporization is insured by a vaporizer-exchanger, and a branch permits the vector gas to short-circuit the vaporizer when the injection is shut off, while feeding the column.

REFERENCES:
patent: 3236092 (1966-02-01), Carter
patent: 3372573 (1968-03-01), Sanford et al.
patent: 3394582 (1968-07-01), Munro et al.
patent: 4007626 (1977-02-01), Roof et al.
patent: 4024752 (1977-05-01), Orlando
patent: 4057997 (1977-11-01), Chandler

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