Selective supercritical fluid extraction to identify aged sediment-bound PCBs available for uptake by eel
A naturally contaminated sediment was partially extracted with selective supercritical fluid extraction (SFE) to remove a fraction of supposedly bioavailable PCBs from the matrix. Eels (Anguilla anguilla) were cultured in systems with untreated and pre-extracted sediment, respectively, and it was sh...
Published in: | Environmental Pollution |
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Online Access: | https://lup.lub.lu.se/record/155488 https://doi.org/10.1016/j.envpol.2005.06.021 |
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ftulundlup:oai:lup.lub.lu.se:5a58800e-489f-4dda-9546-782069f9d3ed 2023-05-15T13:27:38+02:00 Selective supercritical fluid extraction to identify aged sediment-bound PCBs available for uptake by eel Nilsson, Tobias Häkkinen, J Larsson, Per Björklund, Erland 2006 https://lup.lub.lu.se/record/155488 https://doi.org/10.1016/j.envpol.2005.06.021 eng eng Elsevier https://lup.lub.lu.se/record/155488 http://dx.doi.org/10.1016/j.envpol.2005.06.021 pmid:16188355 wos:000234956600012 scopus:30144436720 Environmental Pollution; 140(1), pp 87-94 (2006) ISSN: 0269-7491 Analytical Chemistry Ecology contributiontojournal/article info:eu-repo/semantics/article text 2006 ftulundlup https://doi.org/10.1016/j.envpol.2005.06.021 2023-02-01T23:27:07Z A naturally contaminated sediment was partially extracted with selective supercritical fluid extraction (SFE) to remove a fraction of supposedly bioavailable PCBs from the matrix. Eels (Anguilla anguilla) were cultured in systems with untreated and pre-extracted sediment, respectively, and it was shown that the SFE treatment selectively removed bioavailable PCBs from the sediment, since relative biota-to-sediment accumulation factors (BSAFs) for the eight studied PCB congeners were much lower in the pre-extracted than in the untreated system at the end of the study. Relative BSAF values decreased with about the same relative amount for all eight congeners, independent of the degree of chlorination and the initial concentration in the sediment. The results demonstrate the ability of SFE to selectively remove sediment-bound PCBs that are available for uptake by the eels, thus demonstrating the feasibility of using selective SFE to estimate bioavailability of PCBs in sediments. Supercritical fluid extraction could successfully measure bioavailable fractions of PCBs in sediment. Article in Journal/Newspaper Anguilla anguilla Lund University Publications (LUP) Environmental Pollution 140 1 87 94 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Analytical Chemistry Ecology |
spellingShingle |
Analytical Chemistry Ecology Nilsson, Tobias Häkkinen, J Larsson, Per Björklund, Erland Selective supercritical fluid extraction to identify aged sediment-bound PCBs available for uptake by eel |
topic_facet |
Analytical Chemistry Ecology |
description |
A naturally contaminated sediment was partially extracted with selective supercritical fluid extraction (SFE) to remove a fraction of supposedly bioavailable PCBs from the matrix. Eels (Anguilla anguilla) were cultured in systems with untreated and pre-extracted sediment, respectively, and it was shown that the SFE treatment selectively removed bioavailable PCBs from the sediment, since relative biota-to-sediment accumulation factors (BSAFs) for the eight studied PCB congeners were much lower in the pre-extracted than in the untreated system at the end of the study. Relative BSAF values decreased with about the same relative amount for all eight congeners, independent of the degree of chlorination and the initial concentration in the sediment. The results demonstrate the ability of SFE to selectively remove sediment-bound PCBs that are available for uptake by the eels, thus demonstrating the feasibility of using selective SFE to estimate bioavailability of PCBs in sediments. Supercritical fluid extraction could successfully measure bioavailable fractions of PCBs in sediment. |
format |
Article in Journal/Newspaper |
author |
Nilsson, Tobias Häkkinen, J Larsson, Per Björklund, Erland |
author_facet |
Nilsson, Tobias Häkkinen, J Larsson, Per Björklund, Erland |
author_sort |
Nilsson, Tobias |
title |
Selective supercritical fluid extraction to identify aged sediment-bound PCBs available for uptake by eel |
title_short |
Selective supercritical fluid extraction to identify aged sediment-bound PCBs available for uptake by eel |
title_full |
Selective supercritical fluid extraction to identify aged sediment-bound PCBs available for uptake by eel |
title_fullStr |
Selective supercritical fluid extraction to identify aged sediment-bound PCBs available for uptake by eel |
title_full_unstemmed |
Selective supercritical fluid extraction to identify aged sediment-bound PCBs available for uptake by eel |
title_sort |
selective supercritical fluid extraction to identify aged sediment-bound pcbs available for uptake by eel |
publisher |
Elsevier |
publishDate |
2006 |
url |
https://lup.lub.lu.se/record/155488 https://doi.org/10.1016/j.envpol.2005.06.021 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Environmental Pollution; 140(1), pp 87-94 (2006) ISSN: 0269-7491 |
op_relation |
https://lup.lub.lu.se/record/155488 http://dx.doi.org/10.1016/j.envpol.2005.06.021 pmid:16188355 wos:000234956600012 scopus:30144436720 |
op_doi |
https://doi.org/10.1016/j.envpol.2005.06.021 |
container_title |
Environmental Pollution |
container_volume |
140 |
container_issue |
1 |
container_start_page |
87 |
op_container_end_page |
94 |
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1766399547744976896 |