Abstract

Oral Sessions

Day 3, May 21（Fri.）　16:25-16:45　Room E (Zoom)

3E-O15-1625　　PDF

Development of a multi-turn time-of-flight mass spectrometer with a proton transfer reaction ion source for the comprehensive on-site real-time measurement of volatile organic compounds

(¹Osaka Univ., ²Osaka Univ., ³MSI.TOKYO)
^oYosuke Kawai¹, Shinya Kawai¹, Hiroshi Furutani², Morio Ishihara¹, Reiki Watanabe³, Kunihiko Nakayama³, Ikunori Kannoh³, Norihisa Hatakeyama³, Michisato Toyoda¹

Volatile Organic Compounds (VOCs) released into the atmosphere by burning fossil fuels and biological activities are highly chemically reactive, so they are an important causative agent of air pollution such as photochemical oxidants and atmospheric aerosol particles (PM_2.5). For comprehensive on-site real-time monitoring of a wide variety of VOCs, we have developed PTR-MULTUM consisting of a multi-turn time-of-flight mass spectrometer (MULTUM) with a proton transfer reaction (PTR) ion source. Performance evaluation confirmed that a good linear response was observed for 2 orders of concentration magnitude, and the limit of detection was around 6 ppbv for one-minute data accumulation.