Helium saving a direction for a gas chromatograph

摘要

Device for a gas chromatograph system (gc), which comprises:an injector, which is available at a helium gas source and a not - helium gas source is connected;the not - helium gas source is configured to an input end of a fractionating column under pressure and a partial stream or a stream of cleansing gas; anda subscriber line interface, which contains the following:a line, which surrounds the input end of the fractionating column,a controller, to the line connected to it, a first mode, which during a period of a coaxial bro nsted acid, which is smaller than the columns current is, in order to effect of a sample to the column, and a second mode, which, after a period of a coaxial bro nsted acid, the greater than the columns current is, in order to prevent the not - helium gas enters into the fractionating column.