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| Auteurs principaux: | , |
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
1995
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| Accès en ligne: | https://doi.org/10.1594/PANGAEA.738585 |
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| _version_ | 1867171359574982656 |
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| author | Tian, R C Nicolas, E |
| author_facet | Tian, R C Nicolas, E |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Iodine speciation analysis was carried out upon seawater samples collected in July 1993 at the DYFAMED station (43 °25?N, 7 °52?E) located in the northwestern Mediterranean Sea. Dissolved iodate and iodide were directly determined by differential pulse polarography and cathodic stripping square wave voltammetry, respectively, and organically bound iodine was estimated by wet-chemical oxidation with sodium hypochlorite. Iodate is the predominant species ranging from 416 nM in surface waters to 480 nM in bottom waters. Iodide is present in significant concentrations up to 60 nM in surface waters, undetectable between 500 and 1000 m depth and present in very low but measurable concentrations (about 6 nM) in deep waters. The vertical profile of total free iodine demonstrates observable removal from surface waters, slight enrichment at about 200 m depth and constant there below. Up to 40 nM of organically bound iodine has been estimated between 20 to 30 m. Factorial analysis of different iodine species with biologically relevant parameters provided strong evidence for iodine biophilic features. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_738585 |
| institution | PANGAEA |
| language | en |
| publishDate | 1995 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Iodine speciation at time series station DYFAMED Tian, R C Nicolas, E Biogeochemical Processes in the Oceans and Fluxes; CTD/Rosette; CTD-RO; DYFAMED__Campaign; DYFAMED_19930630; DYFAMED_19930906; DYFAMED_19940113; DYFAMED_19940213; DYFAMED_19940305; DYFAMED_19940405; DYFAMED_19940428; DYFAMED_19940604; DYFAMED_19941108; JGOFS; Joint Global Ocean Flux Study; MEDAR/MEDATLAS; Mediterranean Data Archaeology and Rescue; PROOF; Time-series station Iodine speciation analysis was carried out upon seawater samples collected in July 1993 at the DYFAMED station (43 °25?N, 7 °52?E) located in the northwestern Mediterranean Sea. Dissolved iodate and iodide were directly determined by differential pulse polarography and cathodic stripping square wave voltammetry, respectively, and organically bound iodine was estimated by wet-chemical oxidation with sodium hypochlorite. Iodate is the predominant species ranging from 416 nM in surface waters to 480 nM in bottom waters. Iodide is present in significant concentrations up to 60 nM in surface waters, undetectable between 500 and 1000 m depth and present in very low but measurable concentrations (about 6 nM) in deep waters. The vertical profile of total free iodine demonstrates observable removal from surface waters, slight enrichment at about 200 m depth and constant there below. Up to 40 nM of organically bound iodine has been estimated between 20 to 30 m. Factorial analysis of different iodine species with biologically relevant parameters provided strong evidence for iodine biophilic features. |
| title | Iodine speciation at time series station DYFAMED |
| topic | Biogeochemical Processes in the Oceans and Fluxes; CTD/Rosette; CTD-RO; DYFAMED__Campaign; DYFAMED_19930630; DYFAMED_19930906; DYFAMED_19940113; DYFAMED_19940213; DYFAMED_19940305; DYFAMED_19940405; DYFAMED_19940428; DYFAMED_19940604; DYFAMED_19941108; JGOFS; Joint Global Ocean Flux Study; MEDAR/MEDATLAS; Mediterranean Data Archaeology and Rescue; PROOF; Time-series station |
| url | https://doi.org/10.1594/PANGAEA.738585 |