| 摘要 |
PURPOSE:To easily perform the clear and accurate analysis of collected gas, by collecting a low concn. gas component specimen by a collecting pipe packed with a collecting material while desorbing collected gas under heating in a perfectly hermetically sealed state to guide the same to a gas chromatograph by carrier gas. CONSTITUTION:A low concn. gas component specimen is passed through a collecting pipe 1 packed with a collecting material through a two-way valve 7a to colect an objective component and the two-way valve 7a is closed to establish a perfectly hermetically sealed state. The collecting tube 1 is heated by the heater 2 provided to said tube 1 to desorb collected gas and carrier gas is sent to said tube from a carrier gas supply port 8 to guide the conc. component gas to the specimen injection port of a gas chromatograph. Therefore, the clear and accurate analysis of the componential gas is easily performed. |
