| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas analysis method and a gas analyzer in which errors due to disturbance are reduced.SOLUTION: The gas analysis method includes: a step of repeatedly acquiring a first measurement signal by a light receiving element while repeatedly sweeping an oscillation wavelength of a wavelength variable diode laser within a first measurement wavelength range including an absorption line of an analysis object gas; a step of obtaining a disturbance component caused by disturbance included in at least one first measurement signal out of a plurality of first measurement signals acquired in the step of repeatedly acquiring the first measurement signal, on the basis of respective maximum values of the plurality of first measurement signals; a step of obtaining a base line corresponding to at least the one first measurement signal; and a step of analyzing the analysis object gas on the basis of at least the one first measurement signal, the disturbance component included in at least the one first measurement signal, and the base line. |
