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题名: Vacuum Ultraviolet Photon Ionization Mass Spectrometry for Detection of Dioxin Precursors
作者: Liu Ben-Kang1;  Chen Liang2;  Wang Yan-Qiu1;  Song Zhe2;  Wang Li1
关键词: Dioxin precursors ;  Time-of-flight mass spectrometry ;  Vacuum ultraviolet ;  Single photon ionization
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2014
DOI: 10.3724/SP.J.1096.2014.3033
卷: 42, 期:2, 页:173-178
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: Waste incineration has been considered as a main source of dioxins. During the generation of dioxins, dioxin precursors, such as polychlorinated benzenes ( PCBz), polychlorinated phenols ( PCPh), polycyclic aromatic hydrocarbon ( PAHs), polychlorinated biphenyls ( PCBs) etc., have been proved to be produced with much higher concentrations than dioxins, which had been determined to be closely related to dioxin toxic equivalents. Therefore, online monitoring of these precursor compounds has been becoming one of the main research directions of dioxin detection. In this paper, we reported our attempt on developing a new method for online detection of these dioxin precursors in gas phase, by nanosecond vacuum ultraviolet single photon ionization technique, combined with time. of. flight mass spectrometer. This setup was evaluated by monitoring chlorobenzene, polychlorinated phenols and naphthalene in gas phase. In the range of 5-100 mu g/L, parent ion signal intensity of chlorobenzene exhibits linear dependence on the concentration.
关键词[WOS]: ENHANCED MULTIPHOTON IONIZATION ;  INCINERATION FLUE-GAS ;  WASTE INCINERATION ;  ONLINE ;  MECHANISMS ;  EMISSION ;  IDENTIFICATION ;  CHLOROPHENOLS ;  CHLOROBENZENE ;  SURROGATE
语种: 英语
WOS记录号: WOS:000333673600003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145923
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Liaoning Normal Univ, Dalian 116029, Peoples R China

Recommended Citation:
Liu Ben-Kang,Chen Liang,Wang Yan-Qiu,et al. Vacuum Ultraviolet Photon Ionization Mass Spectrometry for Detection of Dioxin Precursors[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2014,42(2):173-178.
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