Characteristics of polar organic compounds from diesel truck emissions measured by FT-ICR MS
文献类型：期刊论文
| 作者 | Min, Cui5; Han, Yuanxin5; Yan, Caiqing3; Fan, Zhang2; Jun, Li1; Chen, Yingjun4 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2024-02-15 |
| 卷号 | 319页码:8 |
| 关键词 | FT-ICR MS Diesel truck Polar organic compounds WSOC DMSOC |
| ISSN号 | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2023.120319 |
| 英文摘要 | Water-soluble organic compounds (WSOC) and dichloromethane: methanol-soluble organic compounds (DMSOC) in polar organic compounds (POCs) present in emissions from a diesel truck were characterized by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). The main compositions and molecular structures of WSOC and DMSOC were investigated and classified into three groups based on their elemental compositions: CHO, CHON, and S-containing compounds (CHONS and CHOS) (namely WSOCCHO; WSOCCHON; WSOCOS; DMSOCCHO; DMSOCCHON and DMSOCOS). The main results are as follows. (1) The order of groups in WSOC and DMSOC in terms of peak response was CHO (WSOC: 52.2% and DMSOC: 64.5%), CHON (WSOC: 43.4% and DMSOC:25.9%), and S-containing compounds (WSOC: 4.35% and DMSOC: 9.57%). (2) The relative response of compounds with low H/C and O/C ratios and double-bond equivalents (DBE) > 10 in WSOCCHO was twice that of DMSOCCHO, indicating that the WSOC emitted by diesel trucks might contain many highly condensed benzene rings. Compounds with H/C = 2 and DBE = 1 in DMSOCCHO showed a strong relative response, presumably due to a fatty-acid structure, which might be used as a tracer to distinguish emissions from diesel trucks and other pollution sources. (3) The strongest relative response in WSOCCHON was for C11H7O5N2 with an aromaticity equivalent (Xc) = 2.5 and DBE = 9, suggesting that dinitrophenol or methyl nitrophenol might be present. Moreover, C39H76O8N1 with Xc = 0 and DBE = 2 was dominant in DMSOCCHON, suggesting the presence of carboxylic acids. (4) In both WSOC and DMSOC, long-chain aliphatic and organic sulfate compounds accounted for the largest proportion of S-containing compounds. However, the contents of condensed hydrocarbons and aromatic rings in DMSOCOS were higher than those in WSOCOS, which suggests that DMSOCOS has a strong optical absorption ability. Thus, this study effectively determined the POC compounds of diesel truck emissions and their possible structures, providing data for assessing the environmental effects of using diesel trucks. |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001165218900001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/77434]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Min, Cui; Chen, Yingjun |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China 2.East China Normal Univ, Sch Geog Sci, Shanghai 200241, Peoples R China 3.Shandong Univ, Environm Res Inst, Qingdao 266237, Peoples R China 4.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Preve, Shanghai 200433, Peoples R China 5.Yangzhou Univ, Coll Environm Sci & Engn, Yangzhou 225009, Peoples R China |
| 推荐引用方式 GB/T 7714 | Min, Cui,Han, Yuanxin,Yan, Caiqing,et al. Characteristics of polar organic compounds from diesel truck emissions measured by FT-ICR MS[J]. ATMOSPHERIC ENVIRONMENT,2024,319:8. |
| APA | Min, Cui,Han, Yuanxin,Yan, Caiqing,Fan, Zhang,Jun, Li,&Chen, Yingjun.(2024).Characteristics of polar organic compounds from diesel truck emissions measured by FT-ICR MS.ATMOSPHERIC ENVIRONMENT,319,8. |
| MLA | Min, Cui,et al."Characteristics of polar organic compounds from diesel truck emissions measured by FT-ICR MS".ATMOSPHERIC ENVIRONMENT 319(2024):8. |
入库方式： OAI收割
来源：广州地球化学研究所
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