Deciphering C-13 and S-34 Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry
文献类型：期刊论文
| 作者 | Xie, Qiaorong; Su, Sihui; Dai, Yuqing; Hu, Wei; Yue, Siyao; Cao, Dong ; Jiang, Guibin; Fu, Pingqing
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
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| 出版日期 | 2022-06-14 |
| 卷号 | 9期号:6页码:526-532 |
| 关键词 | UNSATURATED FATTY-ACIDS NATURAL ORGANIC-MATTER MOLECULAR CHARACTERIZATION PARTICULATE ORGANOSULFATES HETEROGENEOUS REACTION SO2 OXIDATION OCEANIC DMSP IONIZATION CARBON VARIABILITY |
| ISSN号 | 2328-8930 |
| 英文摘要 | Organosulfates (OSs) are some of the important components of secondary organic aerosols in ambient air. However, little is known about the stable carbon and sulfur isotopic compositions of OSs. Here, we identified the isotopic pair C-12(n)/(CCn-1)-C-13-C-12 and S-32(n)/(SSn-1)-S-34-S-32 formulas in urban aerosols using ultra-high- resolution Fourier transform ion cyclotron resonance mass spectrometry. Family series of 694-1649 (CS)-C-13-S-32 OSs and 40-144 (CS)-C-12-S-34 OSs with completely coherent carbon chains were detected, accounting for 37-52% and 2.2-4.5%, respectively, of the observed (CS)-C-12-S-32 OSs. OSs with detected isotopic peaks have relatively high levels of saturation and high volatilities, especially those containing S-34 isotopes with H/C > 1.5. Moreover, the delta C-13 and delta S-34 values of OSs were estimated with mean values ranging from -22 parts per thousand to -0.87 parts per thousand and from -1 parts per thousand to 26 parts per thousand, respectively. Notably, unsaturated OSs might be more enriched with 34 S than aliphatic ones. Furthermore, all detected 12 C 34 S OSs are in the low-O/C corridor with a low carbon oxidation state, which are mostly volatile and low-volatile organic compounds with high volatility, implying that they are generated by gas-phase oxidation. These findings represent a first step toward identifying the individual molecules of C-13 and S-34 isotopic OSs in atmospheric aerosols. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47502]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 通讯作者 | Fu, Pingqing |
| 作者单位 | 1.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England 2.Max Planck Inst Chem, Multiphase Chem Dept, D-55128 Mainz, Germany 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 10 4.Tianjin Univ, Sch Earth Syst Sci, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China 5.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Qiaorong,Su, Sihui,Dai, Yuqing,et al. Deciphering C-13 and S-34 Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,2022,9(6):526-532. |
| APA | Xie, Qiaorong.,Su, Sihui.,Dai, Yuqing.,Hu, Wei.,Yue, Siyao.,...&Fu, Pingqing.(2022).Deciphering C-13 and S-34 Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry.ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,9(6),526-532. |
| MLA | Xie, Qiaorong,et al."Deciphering C-13 and S-34 Isotopes of Organosulfates in Urban Aerosols by FT-ICR Mass Spectrometry".ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 9.6(2022):526-532. |
入库方式： OAI收割
来源：生态环境研究中心
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