| 摘要 |
PROBLEM TO BE SOLVED: To provide a constituent concentration analyzer and a constituent concentration analysis method for accurately identifying the concentration of a constituent to be measured without causing disturbance during calibration. SOLUTION: This constituent concentration analyzer includes a photo-irradiating means that divides inspection light into two, irradiates a measuring sample 210a with one light to emit measuring sound wave Sa generated by a photoacoustic effect from a measuring sound wave emission point 215a, and irradiates a reference sample 210b with the other light to emit reference sound wave Sb generated by the photoacoustic effect from a reference sound wave emission point 215b, and a sound wave detecting means for detecting the measuring sound wave Sa and reference sound wave Sb emitted by the photo-irradiating means with one sound wave detector 113 existing at a position where the sound wave propagation distance from the measuring sound wave emission point 215a is equal to the sound wave propagation distance from the reference sound wave emission point 215b. COPYRIGHT: (C)2011,JPO&INPIT
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