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首页> 外文期刊>Journal of Environmental Science and Health. A, Toxic/Hazardous Substances & Environmental Engineering >Highly Toxic Chlorobiphenyl and By-Side Impurities Content and Composition of Technical Chlorofen Formulation
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Highly Toxic Chlorobiphenyl and By-Side Impurities Content and Composition of Technical Chlorofen Formulation

机译：高毒性氯联苯和副杂质含量以及工业级氯芬酸制剂的组成

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摘要

Non- and mono-ortho CBs as well as also highly toxic by-side impurities such as chlorodibenzofurans, chlorodibenzo-p-dioxins, and chloronaphthalenes after a subsequent 2D-HPLC and HRGC-HRMS separation, detection, and identification were quantified in technical chlorobiphenyl Chlorofen formulation. Chlorofen is highly chlorinated CB mixture and its compositional profile of mono-ortho CBs is occupied by 2,3,3,4,4,5-HxCB (no. 157) with 96.6% and followed by 2,3,3,4,4,5-HxCB (no. 156) with 3.3% and 2,3,4,4,5,5-HxCB (no. 167) with <0.1%, while nos. 105, 114, 118, 123, and 189 remained undetected (<10 μg/g). Amongst non-ortho CBs only a trace of 3,3,4,4-TeCB (no. 77) was found at 15 μg/g, while CBs nos. 81, 126, and 169 were absent. TCDD TEQ for mono- and non-ortho CBs in Chlorofen was 2320 and 1.5 ng/g, respectively, while for CDFs and CNs were 45 and 731 ng/g, respectively, and for both types of contaminants most contributing were OcCDF and OcCN. No tetra- to OcCDD was found in Chlorofen.
机译：在随后的2D-HPLC和HRGC-HRMS分离，检测和鉴定中，对非邻和单邻CB以及剧毒的副杂质（如氯二苯并呋喃，氯二苯并-对-二恶英和氯萘）进行了定量分析氯氟芬制剂。氯芬是一种高度氯化的CB混合物，其单原位CB的组成特征为2,3,3,4,4,5-HxCB（编号157）占96.6％，其次为2,3,3,4， 4,3-HxCB（编号156）占3.3％，2,3,4,4,5,5-HxCB（编号167）占<0.1％，而105、114、118、123和189仍未检测到（<10μg/ g）。在非邻位CB中，仅以15μg/ g的量发现了3,3,4,4-TeCB（第77号）的痕迹，而CBs没有。没有81、126和169。氯芬芬中单或非邻苯二甲酸酯的TCDD TEQ分别为2320和1.5 ng / g，而CDF和CNs的TCDD TEQ分别为45和731 ng / g，这两种污染物的贡献最大的是OcCDF和OcCN。在氯氟芬中未发现四-至OcCDD。

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