Gas chromatograph with sampling device

The utility model discloses a gas chromatograph with a sampling device. The device comprises an adjusting device and a buffer device, the adjusting device comprises an adjusting plate; a heat dissipation groove of an integrated structure is formed in the surface of the adjusting plate, a movable groove is formed in the bottom of the heat dissipation groove, a filter screen is fixed in the heat dissipation groove, one side, opposite to the inner side of the heat dissipation groove, of the filter screen is connected with a heat preservation plate, a connecting shaft is fixed in the heat preservation plate, and a connecting wheel is connected to the bottom of the connecting shaft. An adjusting device is designed on the surface of a gas chromatograph main body; convenience is brought to usersaccording to actual conditions, the heat dissipation efficiency of the gas chromatograph is adjusted; the gas chromatograph is simple in structure and convenient for a user to accurately control the temperature of the gas chr