Development of a field portable ultra-high resolution proton-transfer reaction mass spectrometer for comprehensive and simultaneous measurement of volatile organic compounds
| Project/Area Number |
16H04165
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Analytical chemistry
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
古谷 浩志 大阪大学, 科学機器リノベーション・工作支援センター, 准教授 (40536512)
本堂 敏信 大阪大学, 理学研究科, 招へい研究員 (90723924)
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| Research Collaborator |
ISHIHARA Morio
AOKI Jun
KAWAI Shinya
MATSUOKA Hisanori
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2017: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
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| Keywords | 可搬型超高分解能質量分析計 / プロトン移動反応イオン化 / 揮発性有機化合物 / VOCs / 網羅分析 / 環境計測 / マルチターン飛行時間型質量分析計 / 揮発性有機物質 / 揮発性有機物質計測 |
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| Outline of Final Research Achievements |
For the comprehensive and simultaneous observation of volatile organic compounds (VOCs), a new ultra-high resolution mass spectrometer, in which a soft-ionization technique (proton-transfer reaction (PTR) ionization) and an ultra-high resolution mass spectrometer (multi-turn time-of-flight mass spectrometer: MULTUM) are combined as PTR-MULTUM, was developed. As the first step, laboratory-based PTR-MULTUM with an ordinary size of differential pumping system was developed, which has ion guide and ion accumulation system for better detection sensitivity. It had a detection limit of 32 ppbv (xylene, 1000 data accumulation in 20 sec) and mass resolution of 24200. A field-deployable smaller size of PTR-MULTUM was then developed and basic functional check had been completed.
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| Academic Significance and Societal Importance of the Research Achievements |
揮発性有機化合物(VOCs)は，地球的な環境問題となっているPM2.5やオキシダントの原因物質であるが，ごくわずかしか同定されていない．本研究で開発したPTR-MULTUMは，従来の分析法では測定できていない未同定VOCsなども含めて，VOCsを一括して直接測定するために必要な，高い質量分解能を持っていることが示されており，更なる小型化や高感度を進めることで，VOCsの一括直接網羅分析が可能となると期待され，PM2.5・オキダントといった環境問題解決の重要なVOCs分析ツールとなると期待される．
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Report
(4 results)
Research Products
(10 results)
