| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for detecting only a specific gas to be detected from a gas to be measured, containing obstruction gas with high sensitivity to measure the concentration thereof, and a gas detector adapted to this method. SOLUTION: In order to measure the concentration of gas to be detected contained in a gas to be measured containing the gas to be detected forming decomposed gas to be detected through pyrolysis and obstruction gas with respect to the gas to be detected, the gas to be measured is pyrolyzed under a first condition decomposing the obstruction gas but not the gas to be detected, and the decomposed gas formed by the decomposition of the obstruction gas is adsorbed and removed and the gas to be measured is pylolyzed under a second condition, decomposing the gas to be detected and the concentration of the gas to be detected formed by the decomposition of the gas to be detected in the second decomposition process is measured, and the concentration of the gas to be detected is found from correlation forming the decomposed gas to be detected by the pyrolysis of the gas to be detected. |
