The distribution of dissolved thallium in the different water masses of the western sector of the Ross Sea (Antarctica) during the austral summer
Vertical profiles for total dissolved thallium were obtained at five sites in the western sector of the Ross Sea (Southern Ocean), Antarctica. Thallium is estimated to have a natural mean seawater concentration between 50 and 65 pmol L−1with higher values in theNorth Pacific (65±5 pmol L−1) and lowe...
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Online Access: | http://hdl.handle.net/10278/31343 https://doi.org/10.1016/j.microc.2009.07.014 |
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ftuniveneziairis:oai:iris.unive.it:10278/31343 2024-04-14T08:02:58+00:00 The distribution of dissolved thallium in the different water masses of the western sector of the Ross Sea (Antarctica) during the austral summer C. Turetta BARBANTE, Carlo CAPODAGLIO, Gabriele GAMBARO, Andrea CESCON, Paolo C., Turetta Barbante, Carlo Capodaglio, Gabriele Gambaro, Andrea Cescon, Paolo 2010 http://hdl.handle.net/10278/31343 https://doi.org/10.1016/j.microc.2009.07.014 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000282929800004 volume:96 firstpage:194 lastpage:202 journal:MICROCHEMICAL JOURNAL http://hdl.handle.net/10278/31343 doi:10.1016/j.microc.2009.07.014 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84755161694 info:eu-repo/semantics/closedAccess Thallium Ross Sea Seawater Reactive component Non-conservative behaviour Depth profile info:eu-repo/semantics/article 2010 ftuniveneziairis https://doi.org/10.1016/j.microc.2009.07.014 2024-03-21T18:01:37Z Vertical profiles for total dissolved thallium were obtained at five sites in the western sector of the Ross Sea (Southern Ocean), Antarctica. Thallium is estimated to have a natural mean seawater concentration between 50 and 65 pmol L−1with higher values in theNorth Pacific (65±5 pmol L−1) and lower inthe Bay of Biscay and Irish Sea (49±3 pmol L−1). Our samples show a concentration varying from22 to 55 pmol L−1 with amean value of 46 pmol L−1, depending on depth, dissolved oxygen, salinity and local topographic characteristics. The analyses were performed using an ICP-SFMS that has enabled us to obtain reliable Tl concentrationmeasurements with a relative standard deviation of better than 2.5% and a detection limit, calculated as three times the standard deviation of the “blank signal” of 0.69pmol L−1 (1.60 pmol L−1, obtained analysing four blank solutions (n=5) prepared with the same water and acid used for the dilution/acidification steps). Thallium appears to have a nearly conservative distribution in seawater as highlighted also from the comparison with the profiles of two seawater conservative elements:molybdenumand uranium;however it also highlights the presence of a reactive component of thallium, which is more influenced by the presence of particulate matter, oxygen content and fluorescence. Article in Journal/Newspaper Antarc* Antarctica Ross Sea Southern Ocean Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) Southern Ocean Austral Ross Sea Pacific Microchemical Journal 96 2 194 202 |
institution |
Open Polar |
collection |
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) |
op_collection_id |
ftuniveneziairis |
language |
English |
topic |
Thallium Ross Sea Seawater Reactive component Non-conservative behaviour Depth profile |
spellingShingle |
Thallium Ross Sea Seawater Reactive component Non-conservative behaviour Depth profile C. Turetta BARBANTE, Carlo CAPODAGLIO, Gabriele GAMBARO, Andrea CESCON, Paolo The distribution of dissolved thallium in the different water masses of the western sector of the Ross Sea (Antarctica) during the austral summer |
topic_facet |
Thallium Ross Sea Seawater Reactive component Non-conservative behaviour Depth profile |
description |
Vertical profiles for total dissolved thallium were obtained at five sites in the western sector of the Ross Sea (Southern Ocean), Antarctica. Thallium is estimated to have a natural mean seawater concentration between 50 and 65 pmol L−1with higher values in theNorth Pacific (65±5 pmol L−1) and lower inthe Bay of Biscay and Irish Sea (49±3 pmol L−1). Our samples show a concentration varying from22 to 55 pmol L−1 with amean value of 46 pmol L−1, depending on depth, dissolved oxygen, salinity and local topographic characteristics. The analyses were performed using an ICP-SFMS that has enabled us to obtain reliable Tl concentrationmeasurements with a relative standard deviation of better than 2.5% and a detection limit, calculated as three times the standard deviation of the “blank signal” of 0.69pmol L−1 (1.60 pmol L−1, obtained analysing four blank solutions (n=5) prepared with the same water and acid used for the dilution/acidification steps). Thallium appears to have a nearly conservative distribution in seawater as highlighted also from the comparison with the profiles of two seawater conservative elements:molybdenumand uranium;however it also highlights the presence of a reactive component of thallium, which is more influenced by the presence of particulate matter, oxygen content and fluorescence. |
author2 |
C., Turetta Barbante, Carlo Capodaglio, Gabriele Gambaro, Andrea Cescon, Paolo |
format |
Article in Journal/Newspaper |
author |
C. Turetta BARBANTE, Carlo CAPODAGLIO, Gabriele GAMBARO, Andrea CESCON, Paolo |
author_facet |
C. Turetta BARBANTE, Carlo CAPODAGLIO, Gabriele GAMBARO, Andrea CESCON, Paolo |
author_sort |
C. Turetta |
title |
The distribution of dissolved thallium in the different water masses of the western sector of the Ross Sea (Antarctica) during the austral summer |
title_short |
The distribution of dissolved thallium in the different water masses of the western sector of the Ross Sea (Antarctica) during the austral summer |
title_full |
The distribution of dissolved thallium in the different water masses of the western sector of the Ross Sea (Antarctica) during the austral summer |
title_fullStr |
The distribution of dissolved thallium in the different water masses of the western sector of the Ross Sea (Antarctica) during the austral summer |
title_full_unstemmed |
The distribution of dissolved thallium in the different water masses of the western sector of the Ross Sea (Antarctica) during the austral summer |
title_sort |
distribution of dissolved thallium in the different water masses of the western sector of the ross sea (antarctica) during the austral summer |
publishDate |
2010 |
url |
http://hdl.handle.net/10278/31343 https://doi.org/10.1016/j.microc.2009.07.014 |
geographic |
Southern Ocean Austral Ross Sea Pacific |
geographic_facet |
Southern Ocean Austral Ross Sea Pacific |
genre |
Antarc* Antarctica Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctica Ross Sea Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000282929800004 volume:96 firstpage:194 lastpage:202 journal:MICROCHEMICAL JOURNAL http://hdl.handle.net/10278/31343 doi:10.1016/j.microc.2009.07.014 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84755161694 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.microc.2009.07.014 |
container_title |
Microchemical Journal |
container_volume |
96 |
container_issue |
2 |
container_start_page |
194 |
op_container_end_page |
202 |
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1796318947855826944 |