| Project/Area Number |
21F20397
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 外国 |
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| Review Section |
Basic Section 63010:Environmental dynamic analysis-related
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| Research Institution | Nagoya University |
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Principal Investigator |
持田 陸宏 名古屋大学, 宇宙地球環境研究所, 教授 (10333642)
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| Co-Investigator(Kenkyū-buntansha) |
CHANG YUNHUA 名古屋大学, 宇宙地球環境研究所, 外国人特別研究員
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| Project Period (FY) |
2021-04-28 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2022: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2021: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | organic aerosol / mass spectrometry / biomass burning / chemical structure / light absorption / Australia |
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| Outline of Research at the Start |
オーストラリアの南東部で採取された大気エアロゾル試料に対する質量分析や赤外吸収測定に基づき、エアロゾルに含まれる有機物（有機エアロゾル）の化学構造の特徴付けを行う。そして、有機エアロゾルの抽出物の質量スペクトルに対して多変量解析を行うことで、その起源について知見を得ることを目指す。さらに、有機エアロゾルの紫外可視吸収と蛍光の測定を行い、有機エアロゾルの光吸収特性とその化学構造の関係を得ることも目標とする。
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| Outline of Annual Research Achievements |
The mass spectrometric analysis for water-soluble and water-insoluble components extracted from atmospheric aerosol samples collected during COALA-2020 campaign in New South Wales, Australia, in 2020 (cut-off diameter: 0.95 micrometer) was in part performed under this research project by the use of an high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS). In this analysis, the solutions of water-soluble and water-insoluble components from the aerosol samples were nebulized using a home-made nebulizer with compressed cylinder air. The generated aerosols were passed through diffusion scrubbers to remove solvent vapors, which was followed by the exchange of the carrier gas to argon in gas exchange device. The sample aerosol particles in the argon flow were transferred to the HR-ToF-AMS for the analysis using electron ionization mass spectrometry. This mass spectrometric analysis, along with that was performed after the experiments under this project, is expected to contribute to the understanding of the contrasting roles of biomass burning organic aerosol and biogenic secondary organic aerosol: both of them are of biomass origin but they are from different emission pathways.
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| Research Progress Status |
令和4年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和4年度が最終年度であるため、記入しない。
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