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首页> 外文期刊>Environmental Science & Technology >Identification of Monochloro-Nonabromodiphenyl Ethers in the Air and Soil Samples from South China
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Identification of Monochloro-Nonabromodiphenyl Ethers in the Air and Soil Samples from South China

机译：华南地区空气和土壤样品中一氯-萘二溴二苯醚的鉴定

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摘要

Several studies have indicated that mixed brominated/chlori-nated organic compounds could be formed during the thermal process such as the incineration of municipal solid waste and open burning of unregulated e-waste at recycling areas. In this study, air particles and soils from e-waste recycling areas, as well as outdoor and indoor air particles from urban Guangzhou, were collected and pooled for the identification of mixed chlorinated/brominated diphenyl ethers (PXDEs). Three monochloro-nonabromo diphenyl ethers (Cl-nonaBDEs), including 6'-CI-BDE-206, 5'-Cl-BDE-207, and/or 4;-Cl-BDE-208, were first structurally identified in these air and soil samples. The identification was done by comparison of retention times in chromatograms of pure reference compounds and environmental samples, as well as by comparison with full-scan mass spectra data in electron capture negative ionization mode. Because of their similar physical-chemical properties, 4'-Cl-BDE-208 and S'-C1-BDE-2O7 absolutely coeluted, even on a nonpolar DB-5 column. Further investigation is still needed to clarify these findings. Nevertheless, the results indicated that Cl-nonaBDEs would occur in various environmental matrices. Because the replacement of Br by Cl will change the physical-chemical properties of PBDE analogues, environmental occurrence, fate, and transport, the potential toxicity of PXDEs should be investigated.
机译：多项研究表明，在加热过程中可能会形成混合的溴化/氯化有机化合物，例如焚化城市固体废物和在回收区露天燃烧不受管制的电子废物。在这项研究中，收集并汇总了来自电子废物回收区的空气颗粒和土壤，以及来自广州市区的室外和室内空气颗粒，以鉴定混合的氯化/溴化二苯醚（PXDEs）。首先在这些空气中在结构上鉴定了三种六氯一九溴二苯醚（Cl-nonaBDEs），包括6'-CI-BDE-206、5'-Cl-BDE-207和/或4; -Cl-BDE-208。和土壤样品。通过比较纯参比化合物和环境样品的色谱图中的保留时间，以及与电子捕获负电离模式下的全扫描质谱数据进行比较，进行鉴定。由于它们的相似的物理化学性质，即使在非极性DB-5色谱柱上，4'-Cl-BDE-208和S'-C1-BDE-2O7也可以共洗脱。仍需要进一步调查以澄清这些发现。然而，结果表明Cl-nonaBDEs将在各种环境基质中发生。由于用Cl取代Br会改变PBDE类似物的物理化学性质，环境发生，命运和运输，因此应研究PXDE的潜在毒性。

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  • 来源
    《Environmental Science & Technology》 |2011年第7期|p.2619-2625|共7页
  • 作者

    Zhiqiang Yu; Kewen Zheng; Guofa Ren; Decheng Wang; Shengtao Ma; Pingan Peng; Minghong Wu; Guoying Sheng; Jiamo Fu;

  • 作者单位

    State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

    Institute of Environmental Pollution and Health, School of Environment and Chemical Engineering, Shanghai University,Shanghai 200072, China;

    Institute of Environmental Pollution and Health, School of Environment and Chemical Engineering, Shanghai University,Shanghai 200072, China;

    Institute of Environmental Pollution and Health, School of Environment and Chemical Engineering, Shanghai University,Shanghai 200072, China;

    State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China,Graduate School of the Chinese Academy of Sciences, Beijing 100039, China;

    State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

    Institute of Environmental Pollution and Health, School of Environment and Chemical Engineering, Shanghai University,Shanghai 200072, China;

    State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

    State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment Protection and Resource Utilization,Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China,Institute of Environmental Pollution and Health, School of Environment and Chemical Engineering, Shanghai University,Shanghai 200072, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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