| 摘要 |
PROBLEM TO BE SOLVED: To suppress degradation of the detection sensitivity caused by residues such as high boiling point organic compounds on a surface of an oscillator. SOLUTION: In a gas analysis method in which sample gas containing organic compounds for analysis is introduced in a measurement chamber 13 having an oscillator, the frequency of the oscillator 11 is measured in a state in which the organic compounds are deposited on a surface of the oscillator 11 and in a state in which the organic compounds are separated from the surface by heating, and the deposition of the organic compounds is calculated, the change of the frequency is measured, and a solvent is fed to the surface of the oscillator 11 to dissolve and remove the residues on the surface of the oscillator 11. COPYRIGHT: (C)2004,JPO&NCIPI
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