Sample supply device and gas chromatograph

A sample supply device for supplying a sample gas generated in a space in a sample container by volatilizing the sample in the sample container to a supply destination, the sample supply device comprising:

• an insertion tube configured to be inserted into the space in the sample container;
• a pressurized gas supply unit connected to the insertion tube via a flow path to supply a pressurized gas for pressurizing the space to the space via the flow path and the insertion tube;
• a valve configured to open and close the flow path;
• a pressure sensor configured to detect a pressure between the valve and the insertion tube in the flow path;
• and
• a controller to which a detection signal is input from the pressure sensor,
• wherein the controller includes:
• a pressurizing unit configured to pressurize the space by supplying the pressurized gas into the space from the pressurized gas supplying unit via the flow path and the insertion tube by opening the valve in a state in which the insertion tube is inserted into the space;
• a sample derivation processing unit configured to derive the sample gas in the space by a pressure in the space before processing by the pressurization processing unit;
• a pressure detection processing unit configured to detect a pressure in the flow path based on the detection signal from the pressure sensor in a state in which the valve is closed and the insertion tube is inserted into the space before processing by the pressurization processing unit;
• and
• a signal generation processing unit configured to generate a signal based on a detection result by the pressure detection processing unit.