GAS CHROMATOGRAPH AND GAS CHROMATOGRAPH MASS SPECTROMETER

PROBLEM TO BE SOLVED: To measure both of a sample including a solvent having a large vaporization volume and a sample with a high-boiling-point constituent as a main constituent with improved reproducibility. SOLUTION: When analyzing a sample including a solvent having a large vaporization volume, a gap provided at an upper portion between a housing 1 and a heater block 22 prevents heat of a heater from being easily transferred to an upper portion of an insert 2, thus preventing the volume of a sample to be vaporized from exceeding the internal volume of the insert 2 and analyzing a sample including a solvent having a large vaporization volume with improved reproducibility. When measuring a sample with a constituent having a high boiling point as a main constituent, a heat-conducting spacer 32 is fitted to the gap for analysis, thus improving heat conduction between the heater block 22 at the gap section and the housing 1, promoting vaporization of the high-boiling-point constituent in the sample with the high-boiling-point constituent as a main constituent and analyzing a sample with the high-boiling-point constituent as a main constituent with improved reproducibility. COPYRIGHT: (C)2010,JPO&INPIT