| 摘要 |
PROBLEM TO BE SOLVED: To provide a method capable of performing quantitative analysis with substantially high sensitivity. SOLUTION: The method for performing the quantitative analysis of a test material by using an infrared phosphor radiating fluorescence having a wavelength in an infrared domain when being irradiated with excitation light having a wavelength in the infrared domain includes (1) a step of irradiating a mixture M<SB>1</SB>including the test material and the infrared phosphor or a mixture M<SB>2</SB>acquired by taking a part therefrom with the excitation light having the wavelength in the infrared domain, and acquiring fluorescence intensity I<SB>1</SB>relative to the fluorescence having the wavelength in the infrared domain radiated from the mixture M<SB>1</SB>or M<SB>2</SB>, and (2) a step of determining the quantity Q<SB>1</SB>of the test material from the fluorescence intensity I<SB>1</SB>acquired in the step (1) based on the correlation A between the fluorescence intensity I relative to a model mixture in the step (1) and the quantity Q of the test material, which is acquired beforehand by a model experiment using the infrared phosphor and the test material. COPYRIGHT: (C)2007,JPO&INPIT
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