Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1984-09-07
1985-12-17
Spitzer, Robert
Gas separation
Means within gas stream for conducting concentrate to collector
55197, 55386, 436161, B01D 1508
Patent
active
045590630
ABSTRACT:
The invention relates to a direct on column non-vaporizing injector for gas chromatographic analyses and comprising an accessory device capable of allowing injection with sample vaporization and possible splitting. The accessory device is formed by a tubular element which, at one end, can be fixed to the injector body coaxially to the passage for the injection syringe needle, while its opposite end is closed by an insert provided with an axial hole in which the gas chromatographic capillary column head is pneumatically inserted, said insert being provided with at least one other hole for splitting the vaporized sample. The tubular element houses a vaporization tube which under conditions of thermal exchange with heating means, is pneumatically connected to said passage for the injection syringe needle and to said insert holes and receives the upper end of the gas chromatogaphic column. Gas is employed countercurrently to strip off undesired components while the liquid sample is held in the vaporization chamber.
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Munari Fausto
Ostan Giovanni
Saravalle Carlo
Tosi Bruno
Trestianu Sorin
Carlo Erba Strumentazione S.p.A.
Spitzer Robert
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