MULTI-SAMPLE INJECTION APPARATUS FOR GAS CHROMATOGRAPHY USING VACUUM THERMAL DESORPTION

摘要

An apparatus for injecting the multiple samples comprising a volatile harmful gas and an offensive material is provided to allow a thermally unstable compound to be analyzed and to reduce the amount of a sample necessary for analysis remarkably. An apparatus for injecting the multiple samples comprising a volatile harmful gas and an offensive material comprises a low temperature adsorption pipe(13) which is optionally connected with a sample drier(21) for collecting the volatile harmful gas and offensive material in air and concentrates the dried sample transferred from the sample drier at a low temperature to heat it; a temperature control part which cools or heats the low temperature adsorption pipe; a vacuum pump(23) which makes the low temperature adsorption pipe be in vacuum if the low temperature adsorption pipe is connected with the sample drier; and a sample storage and supply part(30) which is optionally connected with the low temperature adsorption pipe and discharges the sample delivered from the low temperature adsorption pipe to a sample analysis device.