Advanced molecular-fingerprinting analysis of dissolved organic sulfur by electrospray ionization -Fourier transform ion cyclotron resonance mass spectrometry using optimal spray solvent
文献类型：期刊论文
| 作者 | Cao, Dong ; Rao, Ziyu; Geng, Fanglan; Niu, Hongyun; Shi, Yali; Cai, Yaqi; Kang, Yuehui
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
 |
| 出版日期 | 2020-11 |
| 卷号 | 97页码:67-74 |
| 关键词 | Natural organic matter Fourier transform ion cyclotron resonance mass spectrometry Spray solvent Dissolved organic sulfur |
| ISSN号 | 1001-0742 |
| 英文摘要 | Molecular level characterization of dissolved organic sulfur (DOS) by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI-FTICR MS) is necessary for further understanding of the role of DOS in the environment. Here, ESI spray solvent, a key parameter for ion production during ESI process, was investigated for its effect on the molecular characterization of DOS by ESI-FTICR MS. 100% Me0H as spray solvent was found for the first time to remarkably enhance the ionization efficiency of the majority of CHOS-molecules in NOM, which facilitated a total of 1473 CHOS-molecular formulas with one sulfur atom to be detected. The number of CHOS-molecular formulas obtained using 100%MeOH as spray solvent increased notably over 740 in comparison with those using 50% Me0H aqueous solution (731) or 50% ACN aqueous solution (653). Moreover, due to the enhancement of ionization efficiency of DOS during ESI processes, the tandem mass spectra of the NOM CHOS-molecules could be easily obtained using 100% Me0H as spray solvent, which were hardly obtained using 50% Me0H aqueous solution as spray solvent. The results of the tandem mass spectra suggested the first discovery of organosulfates or sulfonic acids in Suwannee River NOM sample. A simple method based on 100% Me0H as ESI spray solvent for advanced molecular characterization of DOS by ESI-FTICR MS was proposed and applied, and the results revealed more molecular information of DOS in sea DOM samples. (C) 2020 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44591]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Cao, Dong,Rao, Ziyu,Geng, Fanglan,et al. Advanced molecular-fingerprinting analysis of dissolved organic sulfur by electrospray ionization -Fourier transform ion cyclotron resonance mass spectrometry using optimal spray solvent[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2020,97:67-74. |
| APA | Cao, Dong.,Rao, Ziyu.,Geng, Fanglan.,Niu, Hongyun.,Shi, Yali.,...&Kang, Yuehui.(2020).Advanced molecular-fingerprinting analysis of dissolved organic sulfur by electrospray ionization -Fourier transform ion cyclotron resonance mass spectrometry using optimal spray solvent.JOURNAL OF ENVIRONMENTAL SCIENCES,97,67-74. |
| MLA | Cao, Dong,et al."Advanced molecular-fingerprinting analysis of dissolved organic sulfur by electrospray ionization -Fourier transform ion cyclotron resonance mass spectrometry using optimal spray solvent".JOURNAL OF ENVIRONMENTAL SCIENCES 97(2020):67-74. |
入库方式： OAI收割
来源：生态环境研究中心
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