DEVICE TO INJECT SAMPLE INTO GAS CHROMATOGRAPHER Russian patent published in 1996 - IPC

FIELD: chromatography. SUBSTANCE: device to inject sample into gas chromatographer has case housing evaporation chamber with passage to feed gas support material, elastic membrane arranged between bushing and cone-shaped recess and sealing plug with duct for needle of injector. Center of membrane facing inlet hole has recess and its other side has protrusion. Recess and protrusion are uniaxially connected by passage which size does not exceed size of diameter of needle of injector. Protrusion may have shape of cone and recess may be made in the form of hemisphere. EFFECT: simplified design, improved operational reliability. 3 cl, 1 dwg