Influence of delipidation on Hg analyses in biological tissues: a case study for an Antarctic ecosystem
International audience The use of low-polarity organic solvents is widespread in cleanup/extraction processes in order to carry compounds of interest, remove interferences and separate phases, among other uses. A large number of studies have used delipidation to remove excess of lipids to analyse ca...
Published in: | Water, Air, & Soil Pollution |
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ftunivnantes:oai:HAL:hal-01683626v1 2023-05-15T13:49:12+02:00 Influence of delipidation on Hg analyses in biological tissues: a case study for an Antarctic ecosystem Cipro, Caio, Bustamante, Paco Montone, Rosalinda LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Instituto Oceanográfico Universidade de São Paulo = University of São Paulo (USP) 2017 https://hal.science/hal-01683626 https://hal.science/hal-01683626/document https://hal.science/hal-01683626/file/Cipro%20et%20al%202017%20WATE.pdf https://doi.org/10.1007/s11270-017-3367-8 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s11270-017-3367-8 hal-01683626 https://hal.science/hal-01683626 https://hal.science/hal-01683626/document https://hal.science/hal-01683626/file/Cipro%20et%20al%202017%20WATE.pdf doi:10.1007/s11270-017-3367-8 info:eu-repo/semantics/OpenAccess ISSN: 0049-6979 EISSN: 1573-2932 Water, Air, and Soil Pollution https://hal.science/hal-01683626 Water, Air, and Soil Pollution, 2017, 228 (188), ⟨10.1007/s11270-017-3367-8⟩ delipidation mercury Antarctica food web [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2017 ftunivnantes https://doi.org/10.1007/s11270-017-3367-8 2023-03-08T06:28:59Z International audience The use of low-polarity organic solvents is widespread in cleanup/extraction processes in order to carry compounds of interest, remove interferences and separate phases, among other uses. A large number of studies have used delipidation to remove excess of lipids to analyse carbon stable isotopes in biological tissues for trophic and behavioural ecology investigations. In this context, the primary aim of this study is to assess the influence of one delipidation process on the results of total mercury (Hg) analyses and the possible use of delipidated samples from previous analyses, such as for stable isotopes, in Hg level determination. Samples of vegetation (angiosperm, lichens and mosses), invertebrates (krill and limpets), fish (marbled and black rockcod), bird liver and eggs (Antarctic, Gentoo and Adélie penguins, kelp gull, Antarctic tern, cape petrel and giant southern petrel) and pinniped tissues (Weddell seal, crabeater seal, southern elephant seal and Antarctic fur seal) were analysed for Hg before and after delipidation by cyclohexane. The difference between the two measurements ranged individually from −63 to 136% (in the moss Sanionia uncinata) and the averages ranged from −60 to 66% (in pinniped tissues). The proportion of organic Hg, which presents considerable lipophilicity, but also high affinity for sulfhydryl groups in proteins, might be responsible for such variability. Given the limitations of our study, we think it is safe to say that delipidated samples could not be used to infer total Hg values in non-delipidated ones. Article in Journal/Newspaper Antarc* Antarctic Antarctic Fur Seal Antarctica Cape Petrel Crabeater Seal Elephant Seal Southern Elephant Seal Weddell Seal Université de Nantes: HAL-UNIV-NANTES Antarctic Weddell Water, Air, & Soil Pollution 228 5 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
delipidation mercury Antarctica food web [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
delipidation mercury Antarctica food web [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Cipro, Caio, Bustamante, Paco Montone, Rosalinda Influence of delipidation on Hg analyses in biological tissues: a case study for an Antarctic ecosystem |
topic_facet |
delipidation mercury Antarctica food web [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience The use of low-polarity organic solvents is widespread in cleanup/extraction processes in order to carry compounds of interest, remove interferences and separate phases, among other uses. A large number of studies have used delipidation to remove excess of lipids to analyse carbon stable isotopes in biological tissues for trophic and behavioural ecology investigations. In this context, the primary aim of this study is to assess the influence of one delipidation process on the results of total mercury (Hg) analyses and the possible use of delipidated samples from previous analyses, such as for stable isotopes, in Hg level determination. Samples of vegetation (angiosperm, lichens and mosses), invertebrates (krill and limpets), fish (marbled and black rockcod), bird liver and eggs (Antarctic, Gentoo and Adélie penguins, kelp gull, Antarctic tern, cape petrel and giant southern petrel) and pinniped tissues (Weddell seal, crabeater seal, southern elephant seal and Antarctic fur seal) were analysed for Hg before and after delipidation by cyclohexane. The difference between the two measurements ranged individually from −63 to 136% (in the moss Sanionia uncinata) and the averages ranged from −60 to 66% (in pinniped tissues). The proportion of organic Hg, which presents considerable lipophilicity, but also high affinity for sulfhydryl groups in proteins, might be responsible for such variability. Given the limitations of our study, we think it is safe to say that delipidated samples could not be used to infer total Hg values in non-delipidated ones. |
author2 |
LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Instituto Oceanográfico Universidade de São Paulo = University of São Paulo (USP) |
format |
Article in Journal/Newspaper |
author |
Cipro, Caio, Bustamante, Paco Montone, Rosalinda |
author_facet |
Cipro, Caio, Bustamante, Paco Montone, Rosalinda |
author_sort |
Cipro, Caio, |
title |
Influence of delipidation on Hg analyses in biological tissues: a case study for an Antarctic ecosystem |
title_short |
Influence of delipidation on Hg analyses in biological tissues: a case study for an Antarctic ecosystem |
title_full |
Influence of delipidation on Hg analyses in biological tissues: a case study for an Antarctic ecosystem |
title_fullStr |
Influence of delipidation on Hg analyses in biological tissues: a case study for an Antarctic ecosystem |
title_full_unstemmed |
Influence of delipidation on Hg analyses in biological tissues: a case study for an Antarctic ecosystem |
title_sort |
influence of delipidation on hg analyses in biological tissues: a case study for an antarctic ecosystem |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-01683626 https://hal.science/hal-01683626/document https://hal.science/hal-01683626/file/Cipro%20et%20al%202017%20WATE.pdf https://doi.org/10.1007/s11270-017-3367-8 |
geographic |
Antarctic Weddell |
geographic_facet |
Antarctic Weddell |
genre |
Antarc* Antarctic Antarctic Fur Seal Antarctica Cape Petrel Crabeater Seal Elephant Seal Southern Elephant Seal Weddell Seal |
genre_facet |
Antarc* Antarctic Antarctic Fur Seal Antarctica Cape Petrel Crabeater Seal Elephant Seal Southern Elephant Seal Weddell Seal |
op_source |
ISSN: 0049-6979 EISSN: 1573-2932 Water, Air, and Soil Pollution https://hal.science/hal-01683626 Water, Air, and Soil Pollution, 2017, 228 (188), ⟨10.1007/s11270-017-3367-8⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11270-017-3367-8 hal-01683626 https://hal.science/hal-01683626 https://hal.science/hal-01683626/document https://hal.science/hal-01683626/file/Cipro%20et%20al%202017%20WATE.pdf doi:10.1007/s11270-017-3367-8 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s11270-017-3367-8 |
container_title |
Water, Air, & Soil Pollution |
container_volume |
228 |
container_issue |
5 |
_version_ |
1766251001506955264 |