| 摘要 |
PROBLEM TO BE SOLVED: To smoothly measure chromatography on that site while utilizing an MIP system which penetrates coil for measuring VOCs, even in a low concentration contaminated location.SOLUTION: While securing a capacity range of a sufficient length available as a measuring pipe in a gas line from a penetration implement to a first detector for MIP, the gas line is passed through a six-way cock before and after that area, so that MIP analysis can be performed without delay normally. A feeder which feeds out a carrier gas, a separation column for gas chromatography and a second detector are connected so as to pass the remaining one way of the six-way cock. By switching the six-way cock as needed during measurement of MIP, gas chromatography is initiated for gases secured in the capacity range. |
