Infrared absorption measurement method, infrared absorption...

Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive

Reexamination Certificate

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C250S339130

Reexamination Certificate

active

07067813

ABSTRACT:
An infrared absorption measurement method including: (a) measuring infrared absorption of a target component in a sample gas while decompressing the sample gas so that an absorption area in a peak region of the target component in the infrared absorption shown in a graph is within a predetermined range, the graph showing the relationship between the wave number and absorbance of the sample gas; and (b) calculating the concentration of the target component in the sample gas based on the absorption area and pressure of the decompressed sample gas.

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