Gas chromatography-Orbitrap mass spectrometry screening of organic chemicals in fly ash samples from industrial sources and implications for understanding the formation mechanisms of unintentional persistent organic pollutants
文献类型：期刊论文
| 作者 | Yang, Lili; Wang, Shen; Peng, Xing; Zheng, Minghui; Yang, Yuanping; Xiao, Ke ; Liu, Guorui
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2019-05-10 |
| 卷号 | 664页码:107-115 |
| 关键词 | Gas chromatography-Orbitrap/mass spectrometry Organic chemical Industrial source Polycyclic aromatic hydrocarbon |
| ISSN号 | 0048-9697 |
| 英文摘要 | Clarifying the occurrences of organic chemicals in fly ash produced during industrial thermal processes is important for improving our understanding of the formation mechanisms of toxic pollutants such as polycyclic aromatic hydrocarbons (PAHs), halogenated PAHs, dioxins, and other unintentional persistent organic pollutants. We developed a highly sensitive gas chromatography-Orbitrap mass spectrometry (GC-Orbitrap/MS) method and applied it to screening of organic pollutants in fly ash samples from multiple industrial thermal processes. The GC-Orbitrap/MS method could detect and quantify organic pollutants at part per billion (ppb) levels. In total, 96 organic chemicals, including alkanes, benzene derivatives, phenols, polycyclic aromatic hydrocarbons, and biphenyl derivatives were identified in the fly ash samples. Several organic chemicals with chlorine or bromine substituents were abundant in secondary copper smelter fly ash, and these might act as precursors for formation of dioxins, brominated dioxins, and other dioxin-like compounds. Several chlorinated and brominated PAH compounds were also found in the secondary copper smelter fly ash. PAHs were dominant chemicals in the secondary aluminum smelter fly ash samples, and were present in much higher concentrations than in the samples from other industries. This indicates that there are different chemical formation pathways in different industries. Possible formation pathways of PAHs and dioxins were investigated and deduced in this study. These results improve our understanding of the formation mechanisms of toxic unintentional persistent organic pollutants and could be useful for reducing their source emissions. (C) 2019 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42951]  |
| 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 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China 3.Thermo Fisher Sci, Shanghai 200136, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Lili,Wang, Shen,Peng, Xing,et al. Gas chromatography-Orbitrap mass spectrometry screening of organic chemicals in fly ash samples from industrial sources and implications for understanding the formation mechanisms of unintentional persistent organic pollutants[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,664:107-115. |
| APA | Yang, Lili.,Wang, Shen.,Peng, Xing.,Zheng, Minghui.,Yang, Yuanping.,...&Liu, Guorui.(2019).Gas chromatography-Orbitrap mass spectrometry screening of organic chemicals in fly ash samples from industrial sources and implications for understanding the formation mechanisms of unintentional persistent organic pollutants.SCIENCE OF THE TOTAL ENVIRONMENT,664,107-115. |
| MLA | Yang, Lili,et al."Gas chromatography-Orbitrap mass spectrometry screening of organic chemicals in fly ash samples from industrial sources and implications for understanding the formation mechanisms of unintentional persistent organic pollutants".SCIENCE OF THE TOTAL ENVIRONMENT 664(2019):107-115. |
入库方式： OAI收割
来源：生态环境研究中心
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