CONSTANT FLOW VECTOR GAS SUPPLY APPARATUS FOR DIRECT COLUMN INJECTOR USED WITH CAPILLARY AND MICRO-FILLING COLUMNS

摘要

P The invention relates to a device for supplying constant flow rate to gas chromatography columns. The device comprises arranged in parallel a pressure regulator 22 and a flow regulator 24 connected to a switching device 38 allowing to carry out the supply of carrier gas alternately through one or the other circuit according to the operating phase. /P P Application: gas chromatography. /P