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Possibilities and limitations of equilibrium sampling using polydimethylsiloxane in fish tissue.
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
2009 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 77, no 6, 764-70 p.Article in journal (Refereed) Published
Abstract [en]

Polydimethylsiloxane (PDMS) has been used for passive equilibrium sampling in numerous abiotic environmental matrices. Recently, this approach was extended to lipid-rich tissue. This work investigated the possibilities and limitations of using PDMS thin-film extraction for in tissue equilibrium sampling in fish species of varying lipid content. Polychlorinated biphenyls (PCBs) were used as model lipophilic organic pollutants. PDMS thin-films were inserted in intact fish tissue for differing time periods (1h up to 1 week). The thin-films were then solvent-extracted and the extracts were analyzed using gas chromatography coupled to mass spectrometry. Whether equilibrium had been established was investigated either by using PDMS thin-films of multiple thicknesses (140-620 microm) or by assessing kinetics by means of time series. Equilibration was found to be rapid (i.e. in the range of hours) in lipid-rich fish whereas equilibrium was not achieved within one week in tissues with low or medium lipid content (i.e. up to 2% lipids). Regarding lipid-rich fish, the newly developed method was found to be sufficiently sensitive to determine equilibrium partitioning concentrations of PCBs in lipids of samples from the Baltic Sea, and it is a promising approach for any kind of fatty tissue.

Place, publisher, year, edition, pages
2009. Vol. 77, no 6, 764-70 p.
Keyword [en]
In tissue equilibrium sampling, Silicone thin-film extraction, Internal exposure, Solid Phase Microextraction (SPME), Persistent organic pollutants (POPs), Environmental monitoring
National Category
Environmental Sciences Meteorology and Atmospheric Sciences
Identifiers
URN: urn:nbn:se:su:diva-34613DOI: 10.1016/j.chemosphere.2009.08.025ISI: 000271301300009PubMedID: 19765800OAI: oai:DiVA.org:su-34613DiVA: diva2:285293
Available from: 2010-01-11 Created: 2010-01-11 Last updated: 2017-12-12Bibliographically approved

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Jahnke, AnnikaBroman, DagMcLachlan, Michael S
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