IEECAS OpenIR  > 粉尘与环境研究室
UHPLC-Orbitrap mass spectrometric characterization of organic aerosol from a central European city (Mainz, Germany) and a Chinese megacity (Beijing)
Wang, K (Wang, Kai)[ 1,2 ]; Zhang, Y (Zhang, Yun)[ 1 ]; Huang, RJ (Huang, Ru-Jin)[ 2 ]; Cao, JJ (Cao, Junji)[ 2 ]; Hoffman, T (Hoffman, Thorsten)[ 1 ]
2018-09
Source PublicationAtmospheric Environment
Volume189Pages:22-29
Subtype期刊论文
Abstract

Fine urban aerosol particles with aerodynamic equivalent dimeter ≤2.5 μm (PM2.5) were collected in Mainz (a city within the Rhine-Main area, the third largest metropolitan region in Germany) and Beijing (Chinese megacity). A solvent mixture of acetonitrile-water was used to extract the organic aerosol fraction (OA) from the particle samples. The extracts were analyzed by an ultrahigh resolution mass spectrometer (UHRMS) Orbitrap coupled with ultra-high-performance liquid chromatography (UHPLC) both in the negative and positive ion mode. The number of compounds observed in Beijing is a factor of 2–10 higher compared to Mainz. The clear differences on chemical composition of OA in the two cities were observed. The majority of organics in Beijing OA is characterized by lower elemental H/C and O/C ratio but a higher degree of unsaturation and a larger aromaticity equivalent (XC) compared to Mainz OA, suggesting that aromatics, which are related to direct combustion compounds (e.g., oxidized polycyclic aromatic hydrocarbon (PAH)), play an important role for OA in Beijing. A significant number of organosulfates (OSs) with long-carbon chain and low degree of unsaturation were observed in Beijing OA, indicating that long-chain alkanes emitted by vehicle might be their precursors.

KeywordOrganic Aerosol Orbitrap Ms Uhplc Megacity Molecular Characterization
DOI10.1016/j.atmosenv.2018.06.036
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9560
Collection粉尘与环境研究室
Corresponding AuthorHuang, RJ (Huang, Ru-Jin)[ 2 ]; Hoffman, T (Hoffman, Thorsten)[ 1 ]
Affiliation1.Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg University of Mainz, Duesbergweg 10–14, 55128, Mainz, Germany;
2.Key Lab of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China
Recommended Citation
GB/T 7714
Wang, K ,Zhang, Y ,Huang, RJ ,et al. UHPLC-Orbitrap mass spectrometric characterization of organic aerosol from a central European city (Mainz, Germany) and a Chinese megacity (Beijing)[J]. Atmospheric Environment,2018,189:22-29.
APA Wang, K ,Zhang, Y ,Huang, RJ ,Cao, JJ ,&Hoffman, T .(2018).UHPLC-Orbitrap mass spectrometric characterization of organic aerosol from a central European city (Mainz, Germany) and a Chinese megacity (Beijing).Atmospheric Environment,189,22-29.
MLA Wang, K ,et al."UHPLC-Orbitrap mass spectrometric characterization of organic aerosol from a central European city (Mainz, Germany) and a Chinese megacity (Beijing)".Atmospheric Environment 189(2018):22-29.
Files in This Item:
File Name/Size DocType Version Access License
1-s2.0-S135223101830(1753KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, K (Wang, Kai)[ 1,2 ]]'s Articles
[Zhang, Y (Zhang, Yun)[ 1 ]]'s Articles
[Huang, RJ (Huang, Ru-Jin)[ 2 ]]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, K (Wang, Kai)[ 1,2 ]]'s Articles
[Zhang, Y (Zhang, Yun)[ 1 ]]'s Articles
[Huang, RJ (Huang, Ru-Jin)[ 2 ]]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, K (Wang, Kai)[ 1,2 ]]'s Articles
[Zhang, Y (Zhang, Yun)[ 1 ]]'s Articles
[Huang, RJ (Huang, Ru-Jin)[ 2 ]]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.