Molecular characteristics and compositions affecting light absorption features of cloud water revealed by Fourier transform ion cyclotron resonance mass spectrometry
文献类型：期刊论文
| 作者 | Guo, Ziyong1,2,3,4; Sun, Wei1,2,3,4; Hu, Xiaodong1,2,3,4; Lin, Juying1,2,3,4; Fu, Yuzhen1,3,4; Peng, Xiaocong1,2,3,4; Jiang, Bin1,3,4; Liao, Yuhong1,3,4; Zhang, Guohua1,3,4,5 ; Wang, Xinming1,3,4,5
|
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2023-02-15 |
| 卷号 | 295页码:6 |
| 关键词 | Brown carbon Cloud chemistry Molecular characteristics Aqueous-phase reaction FT-ICR MS |
| ISSN号 | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2022.119565 |
| 英文摘要 | In-cloud brown carbon (BrC) can change cloud lifetimes and radiative effects. However, little is known regarding its molecular-level composition. Herein, the molecular characteristics of water-soluble organic matter (WSOM) in cloud water were analyzed by Fourier transform ion cyclotron resonance mass spectrometry coupled with electrospray ionization (ESI) in negative mode. CHON formulas were dominant in WSOM and exhibited the highest level of aromaticity. Combined with the water-soluble BrC (WS-BrC) light-absorption coefficient (Abs365), the principal component analysis indicated that WS-BrC light absorption was mainly affected by unsaturation, aromaticity, highly oxygenated compounds, and N-containing formulas. Thirteen important po-tential WS-BrC were identified based on a random forest regression model, which could explain 61.7% of the variation in Abs365. Among them, C7H6N2O5, C8H8N2O5, C9H10N2O5, C10H12N2O5, C8H10O5S, and C8H9NO7S were identified as WS-BrC for the first time in clouds, and these may belong to dinitrophenols or nitrotyrosine, organosulfates, and their derivatives. These findings would improve our understanding of cloud WS-BrC composition. |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000920460200001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/72465]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Bi, Xinhui |
| 作者单位 | 1.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangdong 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Ziyong,Sun, Wei,Hu, Xiaodong,et al. Molecular characteristics and compositions affecting light absorption features of cloud water revealed by Fourier transform ion cyclotron resonance mass spectrometry[J]. ATMOSPHERIC ENVIRONMENT,2023,295:6. |
| APA | Guo, Ziyong.,Sun, Wei.,Hu, Xiaodong.,Lin, Juying.,Fu, Yuzhen.,...&Bi, Xinhui.(2023).Molecular characteristics and compositions affecting light absorption features of cloud water revealed by Fourier transform ion cyclotron resonance mass spectrometry.ATMOSPHERIC ENVIRONMENT,295,6. |
| MLA | Guo, Ziyong,et al."Molecular characteristics and compositions affecting light absorption features of cloud water revealed by Fourier transform ion cyclotron resonance mass spectrometry".ATMOSPHERIC ENVIRONMENT 295(2023):6. |
入库方式： OAI收割
来源：广州地球化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。