多氯联苯的热解产物。
Pyrolysis products of PCBs.
作者信息
Paasivirta J, Herzschuh R, Humppi T, Kantolahti E, Knuutinen J, Lahtiperä M, Laitinen R, Salovaara J, Tarhanen J, Virkki L
出版信息
Environ Health Perspect. 1985 May;60:269-78. doi: 10.1289/ehp.8560269.
Model compound studies which were previously done for impurities and environmental residues of chlorophenols and for wastes of chlorination processes were extended to the impurities and pyrolysis products of polychlorinated biphenyls (PCBs). Model compounds were commercial products or synthesized and their structures proven by spectroscopic methods. These models were used as analytical reference substances in GC/ECD and GC/MS studies of the pyrolyzed PCB samples. In addition to previously known neutral components like polychlorinated dibenzofurans (PCDFs), chlorophenolic substances, especially polychlorophenols (PCPs) and polychlorinated biphenylols (PCB-OHs) were observed as major pyrolysis products of PCBs. Capacitor fires are suggested to produce in many cases chlorophenols which are major toxic hazards to people.
先前针对氯酚的杂质、环境残留以及氯化过程废弃物所开展的模型化合物研究，现已扩展至多氯联苯（PCBs）的杂质和热解产物。模型化合物为商业产品或合成产物，其结构通过光谱法得以证实。这些模型被用作热解多氯联苯样品的气相色谱/电子捕获检测器（GC/ECD）和气相色谱/质谱（GC/MS）研究中的分析参考物质。除了先前已知的中性成分，如多氯二苯并呋喃（PCDFs）外，还观察到氯酚类物质，尤其是多氯酚（PCPs）和多氯联苯醇（PCB - OHs）是多氯联苯的主要热解产物。据推测，电容器起火在许多情况下会产生对人体具有主要毒性危害的氯酚。
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