METHOD OF CHROMATOGRAPHIC FRACTIONATION OF VAPOR PHASE MIXTURE Russian patent published in 1994 - IPC

FIELD: analysis of materials. SUBSTANCE: composite vapor-and-gas mixture is introduced into a chromatograph column filled with sorbent together with the flow of eluent. Current-conducting crystalline substances are used as sorbent, and a regulated DC potential is applied to the ends of the chromatograph column. High-temperature superconductors, organic superconductors, liquid crystals, non-organic and organic semiconductors, high-temperature oxide electronic conductors and conducting sorbents, for example, graphitized black, activated carbon, are used as current-conducting crystalline substances. Quartz capillary columns with an applied layer of current-conducting sorbent are used as the chromatograph column. Inert gases, compounds in a supercritical state, condensed gases, for example, nitrogen, argon, are used as eluent. A high-intensity electrostatic field or high-frequency discharge can be set up at the inlet to the chromatograph column. EFFECT: facilitated procedure. 4 cl, 1 tbl