Abstract: A method of gas-chromatographic analysis of mixtures involves the use of a chromatograph column comprising a capillary tube which continuously passes a carrier-gas flow saturated with solvent vapors at a temperature below the chromatograph column temperature maintained above the solvent vapor condensation point and below the solvent boiling point, a sample of a mixture to be analyzed being periodically supplied to the column after attaining the equality between the quantity of solvent vapors supplied to the column and the quantity of vapors removed therefrom. To this end, the device for accomplishing the proposed method comprises a saturator partially filled with liquid solvent and placed between a carrier-gas source and means for supplying samples of an analyzed mixture of the column, the saturator being enclosed in a thermostat.