| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a gas chromatograph device capable of reducing fluctuation of pressure value at column inlet.SOLUTION: The gas chromatograph device comprises: a sample vaporizing chamber 40; a carrier gas path 20 with one end connected to a carrier-gas supply source 1 and other end connected to a carrier gas introducing port, which has a pressure control valve 21 and a pressure sensor 22; a purge flow path 60 with one end connected to a purge port, which has a purge flow control valve 61; and a split flow path 70 with one end connected to a split port, which has a split flow control valve 71. The gas chromatograph device further includes a three-way switching valve 3 that switches between a direct connection state in which the other end of the carrier gas path 20 and the one end of the split flow path 70 are directly connected without being interposed by the sample vaporizing chamber 40 and an indirect connection state in which the other end of the carrier gas path 20 and the one end of the split flow path 70 are connected with the sample vaporizing chamber 40 interposed therebetween.</p> |
