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Suspect screening of plastic-related chemicals in northern pike (Esox lucius) from the St. Lawrence River, Canada.
Tian, Lei; Verreault, Jonathan; Houde, Magali; Bayen, Stéphane.
Afiliación
  • Tian L; Department of Food Science and Agricultural Chemistry, McGill University, 21111 Lakeshore Road, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada.
  • Verreault J; Centre de recherche en toxicologie de l'environnement (TOXEN), Département des sciences biologiques, Université du Québec à Montréal, P.O. Box 8888, Succursale Centre-ville, Montréal, QC, H3C 3P8, Canada.
  • Houde M; Aquatic Contaminants Research Division, Environment and Climate Change Canada, Montreal, QC, Canada.
  • Bayen S; Department of Food Science and Agricultural Chemistry, McGill University, 21111 Lakeshore Road, Ste-Anne-de-Bellevue, QC, H9X 3V9, Canada. Electronic address: stephane.bayen@mcgill.ca.
Environ Pollut ; 255(Pt 1): 113223, 2019 Dec.
Article en En | MEDLINE | ID: mdl-31541811
Environmental contaminant monitoring traditionally relies on targeted analysis, and very few tools are currently available to monitor "unexpected" or "unknown" compounds. In the present study, a non-targeted workflow (suspect screening) was developed to investigate plastic-related chemicals and other environmental contaminants in a top predator freshwater fish species, the northern pike, from the St. Lawrence River, Canada. Samples were extracted using sonication-assisted liquid extraction and analyzed by high performance liquid chromatography coupled with quadrupole time of flight mass spectrometry (HPLC-QTOF-MS). Ten bisphenol compounds were used to test the analytical performances of the method, and satisfactory results were obtained in terms of instrumental linearity (r2 > 0.97), recoveries, (86.53-119.32%), inter-day precision and method detection limits. The non-targeted workflow data processing parameters were studied, and the peak height filters (peak filtering step) were found to influence significantly the capacity to detect and identify trace chemicals in pike muscle extracts. None of the ten bisphenol analogues were detected in pike extracts suggesting the absence of accumulation for these chemicals in pike muscle. However, the non-targeted workflow enabled the identification of diethyl phthalate (DEP) and perfluorooctanesulfonic acid (PFOS) in pike extracts. This approach thus can be also applied to various contaminants in other biological matrices and environmental samples.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plásticos / Contaminantes Químicos del Agua / Esocidae Tipo de estudio: Diagnostic_studies / Screening_studies Límite: Animals País/Región como asunto: America do norte Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2019 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Plásticos / Contaminantes Químicos del Agua / Esocidae Tipo de estudio: Diagnostic_studies / Screening_studies Límite: Animals País/Región como asunto: America do norte Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2019 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Reino Unido