| Title: | Modern mass spectrometry in atmospheric sciences: Measurement of volatile organic compounds in the troposphere using proton-transfer-reaction mass spectrometry |
| Address: | "Graduate School of Nanobioscience, Yokohama City University, Yokohama, Kanagawa, Japan. Department of Applications, Tofwerk USA, Boulder, CO, USA" |
| ISSN/ISBN: | 1096-9888 (Electronic) 1076-5174 (Linking) |
| Abstract: | "Volatile organic compounds (VOCs) in the troposphere are emitted from a wide variety of natural and man-made sources and resulting in environmental issues such as air pollution and climate change. Proton-transfer-reaction mass spectrometry (PTR-MS), a chemical ionization mass spectrometry technique using H(3) O(+) reagent ions, allows real-time measurements of various VOCs in air with high sensitivity (parts-per-trillion to parts-per-billion level) and fast time response (<1 s). Modern PTR-MS equipped with time-of-flight mass analyzers can measure hundreds of compounds simultaneously. The applications of PTR-MS have greatly promoted understanding VOC sources and their roles in environmental issues, and therefore, PTR-MS has become a well-established analytical technique for in situ VOC measurements in atmospheric sciences. Here, the principles and implementation of PTR-MS are described. We additionally highlight modern PTR-MS techniques for accurate identification and comprehensive quantification of various VOCs. Finally, recent applications for atmospheric science are presented, using examples from research in biomass burning emissions and chemistry" |
| Keywords: | atmospheric science research identification proton-transfer-reaction mass spectrometry quantification volatile organic compound; |
| Notes: | "PubMed-not-MEDLINESekimoto, Kanako Koss, Abigail R eng 18K05179/Ministry of Education, Culture, Sports, Science and Technology of Japan/ England 2020/09/22 J Mass Spectrom. 2021 Mar; 56(3):e4619. doi: 10.1002/jms.4619. Epub 2020 Sep 21" |
