Process and device for the injection of large volumes of liquid

Details Process and device for the injection of large volumes of liquid Process and device for the injection of large volumes of liquid

1996-07-12

1998-07-14

Spitzer, Robert

Gas separation: processes

Chromatography

Liquid supported on surface of capillary column

95 86, 95 87, 96105, 73 2341, B01D 1508

Patent

active

057797650

ABSTRACT:
To inject a liquid sample with large volume into a GC column of a gas chromatograph, its volatile portion is evaporated by heat, in a non-selective way, in a vaporization chamber, the vapors thus generated being fed to pre-column located upstream of the GC column and maintained at a lower temperature to that of the vaporization chamber, where such compounds are separated from the solvent vapors, which are unloaded into the atmosphere while the compounds to be analyzed are sent to the GC column.

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