Gas phase component analysis device and gas phase component analysis method

A gas phase component analysis method using a gas phase component analysis device including a heating unit, a first column, a second column, an isothermal oven, a detection unit, and a suction unit, the heating unit being configured to heat a specimen to generate a gas phase component composite, the first column being a column into which the gas phase component composite generated by the heating unit is introduced, the second column being a separation column connected with the first column through a connection unit, the isothermal oven being a bath housing the first column, the second column, and the connection unit, the detection unit being configured to detect a gas phase component having passed through the second column, the suction unit being connected with the connection unit, the gas phase component analysis method comprising:

• a process of, when the specimen is heated by the heating unit to generate the gas phase component composite, activating the suction unit, inputting or injecting the specimen into the heating unit, activating the suction unit for a predetermined time after the inputting or injection of the specimen to discharge a non-analysis target component to outside through the suction unit, and setting a temperature of the first column to be higher than a boiling point of the non-analysis target component and lower than a boiling point of an analysis target component so that the analysis target component is selectively captured by the first column;
• and
• a process of stopping the suction unit after the predetermined time, increasing a temperature of the isothermal oven to a temperature equal to or higher than the boiling point of the analysis target component, and introducing the analysis target component into the second column.