High-precision gas chromatograph

The utility model discloses a high-precision gas chromatograph which comprises a gas chromatograph body, a display and an operation panel are arranged on one side of the gas chromatograph body, and a plurality of adjusting switches, a universal serial bus (USB) data interface and a power interface are arranged on one side, located on the operation panel, of the gas chromatograph body. Two connecting plates are fixedly connected to the side, located on the displayer, of the gas chromatograph body, and a base is placed at the bottom of the gas chromatograph body. The gas chromatograph is convenient to use, the connecting shaft can drive the door body to automatically reset, the sealing block plays a role in sealing the opening of the gas chromatograph body, and the gas chromatograph is convenient to use. According to the gas chromatograph, the fan can be started to exhaust gas in the gas chromatograph body, the shock absorber and the spring are matched with each other to reduce the shock of the gas chromatograp