2022 Fiscal Year Final Research Report
Development of Chemometrics Method using Near-IR Absorption of Lanthanide Complex
| Project/Area Number |
20K05529
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 34010:Inorganic/coordination chemistry-related
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| Research Institution | Osaka Metropolitan University (2022)
Osaka City University (2020-2021) |
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Principal Investigator |
SHINODA SATOSHI 大阪公立大学, 大学院理学研究科, 教授 (00285280)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 近赤外分光 / ランタノイド / アミノ酸 / ケモメトリクス / ゼオライト / 定量分析 |
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| Outline of Final Research Achievements |
Since near-infrared absorption based on f-electron transitions in lanthanide ions sensitively changes its shapes depending on the types of the bound molecules and ions, chemical analysis methods utilizing near-infrared spectroscopy and chemometrics is proposed. In this study, in order to develop an analytical method for aqueous solutions, which has been difficult to measure with the previous solution systems, we aimed to support lanthanide ions on a solid phase and apply them for this spectroscopy. As a result of investigating various solid-phase carriers and their preparation methods, we found that an artificial zeolite with lanthanide ions introduced by the cation exchange method is quite effective for this purpose.
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| Free Research Field |
錯体化学・分子認識化学
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| Academic Significance and Societal Importance of the Research Achievements |
近赤外分光法は物質透過性の高い近赤外光とケモメトリクスを用いた非破壊検査法として優れた分析手段であるが，感度の低さにより対象に制限が大きい．本研究で提案しているランタノイドイオンをプローブとした近赤外分光は電子遷移という強い吸収を利用することにより，基質の検出感度の向上が図れるとともに，直接検出が難しい単原子イオンなど観測対象を拡大することができる．固相にランタノイドイオンを担持することにより，より実用的な分析手段とし，アミノ酸などの有機酸を即時に定量可能な新しい分析法につなげることを目指している．
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