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Heptachlor epoxide in marine mammals
Kerkhoff, M.A.T.; de Boer, J.; Geerdes, J. (1981). Heptachlor epoxide in marine mammals. Sci. Total Environ. 19(1): 41-50. https://dx.doi.org/10.1016/0048-9697(81)90117-0
In: Science of the Total Environment. Elsevier: Amsterdam. ISSN 0048-9697; e-ISSN 1879-1026, more
Peer reviewed article  
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Keywords
    Biological phenomena > Accumulation > Bioaccumulation
    Pesticides
    Lagenorhynchus albirostris Gray, 1846 [WoRMS]; Phoca vitulina Linnaeus, 1758 [WoRMS]
    Marine/Coastal
Authors  Top 
  • Kerkhoff, M.A.T.
  • de Boer, J., more
  • Geerdes, J.
Abstract
    The presence of heptachlor epoxide in harbour seals (Phoca vitulina) and white-beaked dolphins (Lagenorhynchus albirostris) has been confirmed by chemical derivatization and mass spectrometric analyses. An unknown compound at a retention time close to that of heptachlor epoxide interfered in the determination by electron capture detector-gas chromatography. On a WCOT CP-Sil 7 column programmed from 85 to 175 °C two poorly separated peaks could be detected. Heptachlor epoxide contents up to 1.7 mg/kg (on a fat basis) were obtained, which were about 200 times lower than the PCB levels. The same ratio was also observed in fish from the same area.
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