| Budget Amount *help |
¥45,240,000 (Direct Cost: ¥34,800,000、Indirect Cost: ¥10,440,000)
Fiscal Year 2022: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Fiscal Year 2019: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2018: ¥24,440,000 (Direct Cost: ¥18,800,000、Indirect Cost: ¥5,640,000)
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| Outline of Final Research Achievements |
Many important and trace amounts of biological and environmental species in liquid solutions are non-fluorescent and absorb light only in the ultraviolet region. A general-purpose method that can detect them without chemical modification and with high sensitivity is required. A label-free and ultra-sensitive detection technique for non-fluorescent chemical species that involves versatility, high sensitivity, and species selectivity is designed and examined by further improving a deep-UV photoexcitation photothermal heterodyne-interferometer. It has been demonstrated that deep UV absorption bands are photoexcited by two-color two-photon excitation using an all-solid-state laser as an excitation light source, and that thermal lens spectra and photoacoustic spectra are successfully measured. Performance of a separation-detection system with high-performance liquid-chromatography and the photothermal heterodyne-interferometer is reported.
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