DOI: 10.1016/j.atmosenv.2017.07.014
Scopus记录号: 2-s2.0-85024369322
论文题名: Complementary online aerosol mass spectrometry and offline FT-IR spectroscopy measurements: Prospects and challenges for the analysis of anthropogenic aerosol particle emissions
作者: Faber P ; , Drewnick F ; , Bierl R ; , Borrmann S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 166 起始页码: 92
结束页码: 98
语种: 英语
英文关键词: Aerosol mass spectrometer
; FT-IR
; Functional groups
; Marker fragment ions
; Organic aerosol
Scopus关键词: Atmospheric aerosols
; Functional groups
; Infrared imaging
; Ions
; Mass spectrometers
; Mass spectrometry
; Salts
; Spectrometers
; Aerosol mass spectrometers
; Aerosol mass spectrometry
; Anthropogenic aerosols
; Complementary filters
; Fragment ions
; Molecular functional group
; Organic aerosol
; Time-resolved dynamics
; Aerosols
; alkane derivative
; alkyl group
; amine
; carboxylic acid derivative
; ion
; volatile organic compound
; aerosol
; aerosol composition
; anthropogenic effect
; emission
; FTIR spectroscopy
; ionic composition
; mass spectrometry
; measurement method
; spectrometer
; absorption spectroscopy
; aerosol mass spectrometry
; air pollutant
; aqueous solution
; Article
; calibration
; chemical composition
; false positive result
; hydration
; infrared spectroscopy
; mass spectrometry
; priority journal
; secondary organic aerosol
; vaporization
; vibration
; water vapor
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The aerosol mass spectrometer (AMS) is well established in investigating highly time-resolved dynamics of submicron aerosol chemical composition including organic aerosol (OA). However, interpretation of mass spectra on molecular level is limited due to strong fragmentation of organic substances and potential reactions inside the AMS ion chamber. Results from complementary filter-based FT-IR absorption measurements were used to explain features in high-resolution AMS mass spectra of different types of OA (e.g. cooking OA, cigarette smoking OA, wood burning OA). Using this approach some AMS fragment ions were validated in this study as appropriate and rather specific markers for a certain class of organic compounds for all particle types under investigation. These markers can therefore be used to get deeper insights in the chemical composition of OA based on AMS mass spectra in upcoming studies. However, the specificity of other fragment ions such as C2H4O2 + (m/z 60.02114) remains ambiguous. In such cases, complementary FT-IR measurements allow the interpretation of highly time-resolved AMS mass spectra at the level of molecular functional groups. Furthermore, this study discusses the challenges in reducing inorganic interferences (e.g. from water and ammonium salts) in FT-IR spectra of atmospheric aerosols to decrease spectral uncertainties for better comparisons and, thus, to get more robust results. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82559
Appears in Collections: 气候变化事实与影响
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作者单位: Max Planck Institute for Chemistry, Particle Chemistry Department, Hahn-Meitner-Weg 1, Mainz, Germany; University of Trier, Department of Hydrology, Behringstraße 21, Trier, Germany; Johannes Gutenberg University, Institute for Atmospheric Physics, J.-J.-Becherweg 21, Mainz, Germany
Recommended Citation:
Faber P,, Drewnick F,, Bierl R,et al. Complementary online aerosol mass spectrometry and offline FT-IR spectroscopy measurements: Prospects and challenges for the analysis of anthropogenic aerosol particle emissions[J]. Atmospheric Environment,2017-01-01,166