Analysis of organic gas absorption by atmospheric organic aerosol components using quartz crystal microbalance method

• Project/Area Number: 26550006
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: Nagoya University
• Principal Investigator: Mochida Michihiro 名古屋大学, 環境学研究科, 准教授 (10333642)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 水晶振動子 / 有機エアロゾル

Outline of Final Research Achievements

Model compounds of atmospheric aerosol and an extract from atmospheric aerosol on quartz crystals were exposed to water and ethanol vapors. Changes in the resonance frequency were observed from exposure of ammonium sulfate to water vapor, from exposure of levoglucosan to water and ethanol vapors, and from exposure of an extract of an atmospheric aerosol sample to ethanol vapor. Detailed interpretation of these results, which might be attributable to the increase of the material mass on quartz crystals and the decrease of their viscosity, remains as a subject for further study.