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  • By-Side Chlorodibenzo-P-Dioxins and Chlorodibenzofurans in Technical Chlorobiphenyl Formulations of Aroclor 1268, Chlorofen, and Clophen T 64

    Author(s)
    Falandysz, J.
    Nose, K.
    Mostrag, A.
    Ishikawa, Y.
    Noma, Y.
    Sakai, S.
    Griffith University Author(s)
    Ishikawa, Yukari
    Year published
    2005
    Metadata
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    Abstract
    Aroclor 1268, Chlorofen, and Clophen T 64 technical chlorobiphenyl formulations were examined for 75 congeners of chlorodibenzo-p-dioxin (CDD) and 135 congeners of chlorodibenzofuran (CDF) using isotope dilution technique, separation, and enrichment on silica gel impregnated with activated carbon and final high resolution gas chromatography (HRGC)/high resolution mass spectrometry (HRMS) quantification. Three the most highly chlorinated congeners of CDD were found in Aroclor 1268, Chlorofen, and Clophen T 64. In the case of CDF, the number of congeners identified was 108 with 44 coeluting in pairs and 3 in triplicate in ...
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    Aroclor 1268, Chlorofen, and Clophen T 64 technical chlorobiphenyl formulations were examined for 75 congeners of chlorodibenzo-p-dioxin (CDD) and 135 congeners of chlorodibenzofuran (CDF) using isotope dilution technique, separation, and enrichment on silica gel impregnated with activated carbon and final high resolution gas chromatography (HRGC)/high resolution mass spectrometry (HRMS) quantification. Three the most highly chlorinated congeners of CDD were found in Aroclor 1268, Chlorofen, and Clophen T 64. In the case of CDF, the number of congeners identified was 108 with 44 coeluting in pairs and 3 in triplicate in Aroclor 1268, 16 with 4 coeluting in pairs in Chlorofen, and 88 with 46 coeluting in pairs and 3 in triplicate in Clophen T 64. The total CDD and CDF concentrations of Aroclor 1268, Chlorofen, and Clophen T 64 were 24, 160, and 8.5 ng/g and 1600, 270,000, and 4000 ng/g, respectively.No mono- to hexa-CDDs could be quantified in Aroclor 1268 (<0.03 to <1 ng/g), Chlorofen (<0.07 to <0.3 ng/g), or Clophen T 64 (<0.007 to <2 ng/g), whereas two hepta-CDDs and octa-CDD were found in all three formulations, and Chlorofen was richer in those compounds, followed by Aroclor 1268 and Clophen T 64.
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    Journal Title
    Journal of Environmental Science and Health, Part A
    Volume
    40
    Issue
    9
    DOI
    https://doi.org/10.1081/ESE-200067981
    Subject
    Instrumental Methods (excl. Immunological and Bioassay Methods)
    Publication URI
    http://hdl.handle.net/10072/60766
    Collection
    • Journal articles

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