The Mass Spectrometry society of Japan - The 68th Annual Conference on Mass Spectrometry, Japan

Abstract

Oral Sessions

Day 2, June 23(Thu.) 16:20-16:40 Room A (Main Hall)

Application of Chemical Ionization Mass Spectrometry for Atmospheric Sciences: Measurement of Volatile Organic Compounds Emitted from Western US Wildfires

(1Yokohama City Univ., 2NOAA ESRL)
oKanako Sekimoto1, Matthew Coggon2, Georgios Gkatzelis2, Chelsea Stockwell2, Carsten Warneke2

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. Chemical ionization mass spectrometry (CI-MS) techniques using specific reagent ions such as H3O+ 1) and NO+ 2) allow real-time measurements of various VOCs in air with high sensitivity and fast time response. Modern CI-MS equipped with time-of-flight (ToF) mass analyzers can measure hundreds of compounds simultaneously. The applications of CI-MS have greatly promoted understanding VOC sources and their roles in environmental issues, and therefore, CI-MS has become a well-established analytical technique for in situ VOC measurements in atmospheric sciences. In this presentation, recent applications of CI-MS for atmospheric science are presented, using following examples from research in biomass burning emissions and chemistry.