Gas chromatograph

A gas chromatograph comprising:

• a gas chromatograph body having an interior space, a first heat insulating member, and a top board, the first heat insulating member being provided to surround the interior space to thermally isolate the interior space from an outside, and the top board being located above a top surface of the first heat insulating member;
• a sample vaporization unit mounted on the top board of the gas chromatograph body, the sample vaporization unit having a housing provided, in an interior space thereof, with a heating space surrounded by a heater, the sample vaporization unit being configured to vaporize a sample injected into the heating space by heat from the heater and introduce the vaporized sample into the gas chromatograph body;
• a second heat insulating member different from the first heat insulating member and provided at a position on the top board of the gas chromatograph body different from a position where the sample vaporization unit is mounted, and
• a cooling fan mounted on the second heat insulating member to blow cooling air toward the sample vaporization unit,
• wherein the second heat insulating member is interposed between the top board of the gas chromatograph body and the cooling fan to thermally isolate the cooling fan from the gas chromatograph body.