气候变化领域集成服务门户(CCPortal): A 1-year characterization of organic aerosol composition and sources using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF)

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DOI	10.5194/acp-20-7875-2020
	A 1-year characterization of organic aerosol composition and sources using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF)
	Qi L.; Vogel A.L.; Esmaeilirad S.; Cao L.; Zheng J.; Jaffrezo J.-L.; Fermo P.; Kasper-Giebl A.; Daellenbach K.R.; Chen M.; Ge X.; Baltensperger U.; Prévôt A.S.H.; Slowik J.G.
发表日期	2020
ISSN	1680-7316
起始页码	7875
结束页码	7893
卷号	20 期号:13
英文摘要	The aerosol mass spectrometer (AMS), combined with statistical methods such as positive matrix factorization (PMF), has greatly advanced the quantification of primary organic aerosol (POA) sources and total secondary organic aerosol (SOA) mass. However, the use of thermal vaporization and electron ionization yields extensive thermal decomposition and ionization-induced fragmentation, which limit chemical information needed for SOA source apportionment. The recently developed extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF) provides mass spectra of the organic aerosol fraction with a linear response to mass and no thermal decomposition or ionization-induced fragmentation. However, the costs and operational requirements of online instruments make their use impractical for long-term or spatially dense monitoring applications. This challenge was overcome for AMS measurements by measuring re-nebulized water extracts from ambient filter samples. Here, we apply the same strategy for EESI-TOF measurements of 1 year of 24 h filter samples collected approximately every fourth day throughout 2013 at an urban site. The nebulized water extracts were measured simultaneously with an AMS. The application of positive matrix factorization (PMF) to EESI-TOF spectra resolved seven factors, which describe water-soluble OA: less and more aged biomass burning aerosol (LABBEESI and MABBEESI, respectively), cigarette-smoke-related organic aerosol, primary biological organic aerosol, biogenic secondary organic aerosol, and a summer mixed oxygenated organic aerosol factor. Seasonal trends and relative contributions of the EESI-TOF OA sources were compared with AMS source apportionment factors, measured water-soluble ions, cellulose, and meteorological data. Cluster analysis was utilized to identify key factor-specific ions based on PMF. Both LABB and MABB contribute strongly during winter. LABB is distinguished by very high signals from C6H10O5 (levoglucosan and isomers) and C8H12O6, whereas MABB is characterized by a large number of CxHyOz and CxHyOzN species of two distinct populations: one with low H V C and high O V C and the other with high H V C and low O V C. Two oxygenated summertime SOA sources were attributed to terpene-derived biogenic SOA, a major summertime aerosol source in central Europe. Furthermore, a primary biological organic aerosol factor was identified, which was dominated by plant-derived fatty acids and correlated with free cellulose. The cigarette-smoke-related factor contained a high contribution of nicotine and high abundance of organic nitrate ions with low m=z. © 2020 Author(s).
语种	英语
scopus关键词	aerosol composition; cost analysis; ionization; mass spectrometry; monitoring; organic matter; source identification
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141229
作者单位	Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), Villigen, 5232, Switzerland; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science and Technology, Nanjing, 210044, China; Key Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, China; State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China; University Grenoble Alpes, Cnrs, Ige, Grenoble, 38000, France; Department of Chemistry, University of Milan, Milan, 20133, Italy; Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, 1060, Austria; Institute for Atmospheric and Environmental Sciences, Goethe University, Frankfurt am Main, Germany; Institute for Atmospheric and Earth System Research, University of Helsin...
推荐引用方式 GB/T 7714	Qi L.,Vogel A.L.,Esmaeilirad S.,et al. A 1-year characterization of organic aerosol composition and sources using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF)[J],2020,20(13).
APA	Qi L..,Vogel A.L..,Esmaeilirad S..,Cao L..,Zheng J..,...&Slowik J.G..(2020).A 1-year characterization of organic aerosol composition and sources using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF).Atmospheric Chemistry and Physics,20(13).
MLA	Qi L.,et al."A 1-year characterization of organic aerosol composition and sources using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF)".Atmospheric Chemistry and Physics 20.13(2020).