Specification of complex-PAHs in coal fire sponges (CFS) by high-resolution mass spectrometry with electrospray ionization
Specification of complex-PAHs in coal fire sponges (CFS) by high-resolution mass spectrometry with electrospray ionization
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采用电喷雾电离高分辨率质谱法测定煤火海绵 (CFS) 中的复合多环芳烃
DOI：
10.1007/s11356-021-12929-3
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发表时间：
2021-02
影响因子：
5.8
通讯作者：
ong
中科院分区：
文献类型：
--
作者：
Xu D;an;Liang Yanci;Hong Xiuping;Liang Ming;Liang H;ong
地下煤火被认为是一场生态灾难。虽然地下煤火在世界各地的产煤区都很普遍，但在中国北方问题最为严重。先前的研究表明，地下煤火刺激地表裂缝或瓦斯出口的形成，以及土层表面的煤火海绵（CFS），这些海绵会收集燃煤污染物。本文采用超高效液相色谱法（UHPLC）结合电喷雾电离（ESI）高分辨率质谱法对内蒙古乌达煤田8号火区的CFS样品进行了分析。结果表明，CFS中含有233种氧取代多环芳烃（O-PAHs），如萘醛；40种草多环芳烃（opah），如二苯并呋喃；40烷基取代多环芳烃（R-PAHs）；11种母体多环芳烃（PPAHs）。因此，CFS主要由O-PAHs组成，其患病率分别是ppah和R-PAHs的25倍和5倍。因此，地下煤火排放的各种O-PAHs相对丰度较高，这与工业燃煤释放的O-PAHs明显不同。由于其水溶性和可凝性，本文揭示的新事实可能为认识地下煤火产生的复杂有机污染物及其环境影响提供新的视角。
Underground coal fires are considered an ecological disaster. While underground coal fires are prevalent in coal-producing areas throughout the world, they are most problematic in northern China. Previous studies have shown that underground coal fires stimulate the formation of cracks or gas outlets on the surface, as well as coal fire sponges (CFS) on the soil layer surface, which collect coal-fired pollutants. Herein, ultra-high-performance liquid chromatography (UHPLC) was used in conjunction with electrospray ionization (ESI) high-resolution mass spectrometry to analyze CFS samples collected from the No. 8 fire zone, located in Wuda coalfield, Inner Mongolia, China. The results show that CFS contain 233 oxy-substituted polycyclic aromatic hydrocarbons (O-PAHs), e.g., naphthaldehyde; 40 oxapolycyclic aromatic hydrocarbons (OPAHs), e.g., dibenzofuran; 40 alkyl-substituted polycyclic aromatic hydrocarbons (R-PAHs); and 11 parent polycyclic aromatic hydrocarbons (PPAHs). Thus, CFS are primarily composed of O-PAHs, which are 25 times and 5 times more prevalent than PPAHs and R-PAHs, respectively. As such, a high relative abundance of varied O-PAHs are discharged from underground coal fires, which is significantly different from what is released during industrial coal burning. Owing to their water solubility and condensability, the new facts disclosed in this paper may provide a new perspective for understanding complex organic pollutants from underground coal fires and their environmental impacts.
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影响因子：
3.1
作者：
G. Stracher;A. Prakash;P. Schroeder;J. McCormack;Xiangming Zhang;P. V. Van Dijk;D. Blake
通讯作者：
G. Stracher;A. Prakash;P. Schroeder;J. McCormack;Xiangming Zhang;P. V. Van Dijk;D. Blake
DOI：
10.1002/rcm.7525
发表时间：
2016-04-15
期刊：
Rapid communications in mass spectrometry : RCM
影响因子：
--
作者：
Fouquet T;Nakamura S;Sato H
通讯作者：
Sato H
影响因子：
11.4
作者：
Lin, Peng;Rincon, Angela G.;Yu, Jian Zhen
通讯作者：
Yu, Jian Zhen
内蒙古乌达煤火区回填区土壤中多环芳烃
影响因子：
6.8
作者：
Liang Ming;Liang Yanci;Liang H;ong;Rao Zhu;Cheng Hongfei
通讯作者：
Cheng Hongfei
内蒙古老矿区不同土地利用方式汞排放通量
影响因子：
3.9
作者：
Li Chunhui;Liang H;ong;Liang Ming;Chen Yang;Zhou Yi
通讯作者：
Zhou Yi