Determination of metal partitioning in porewater extracted from the Seine River Estuary sediment (France)
Identifieur interne : 001349 ( Main/Exploration ); précédent : 001348; suivant : 001350Determination of metal partitioning in porewater extracted from the Seine River Estuary sediment (France)
Auteurs : Baghdad Ouddane [France] ; Ghiasse Abbasse [France] ; Jalal Halwani [Liban] ; Jean Claude Fischer [France]Source :
- Journal of Environmental Monitoring [ 1464-0325 ] ; 2004.
Abstract
Total dissolved trace and major metals and their partitioning in porewater sediment have been investigated at two sites in the Seine River estuary (France). For this purpose, solid phase extraction (SPE) has been employed using specific chelating resins for the separation and preconcentration of organic and inorganic forms of studied metals under controlled (N2) inert atmosphere. In fact, the study is focused on the development of a method for sample collection and handling under inert atmosphere in order to avoid some potential artefacts of the extracted porewater, to preserve the samples from possible chemical oxidation changes and to determine metals partitioning between organic and inorganic forms. For this point, a separation and preconcentration method using two columns in series (chelamine and C18 columns) was used. The trace and major metals fixed on the two resins for all determinations were stripped by nitric acid (2 M) and analyzed by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) and Zeeman Graphite Furnace Atomic Absorption Spectroscopy (ZGF-AAS). The relationship between the distribution of metals and physico-chemical parameters such as pH and Eh (redox potential) as a function of depth was discussed. Some tendency in the distributions and seasonal variability of these traces and major metals are improved. The concentrations for all studied metals decreased as a function of depth where iron and manganese were found at mg L−1 levels and other metals were found at µg L−1 levels, as well as there were significant fractions of all metals (except of manganese) which were complexed by organic matter. The comparison of data for the major elements (Fe and Mn), obtained by direct determination (without preconcentration) and preconcentration, show a very good recovery.
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DOI: 10.1039/b312903a
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Monit.</title><idno type="ISSN">1464-0325</idno><idno type="eISSN">1464-0333</idno><imprint><publisher>The Royal Society of Chemistry.</publisher><date type="published" when="2004">2004</date><biblScope unit="volume">6</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="243">243</biblScope><biblScope unit="page" to="253">253</biblScope></imprint><idno type="ISSN">1464-0325</idno></series><idno type="istex">6D13A1B97996F836641A39F1D8F2248B4DC2A2C9</idno><idno type="DOI">10.1039/b312903a</idno><idno type="ms-id">b312903a</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1464-0325</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Total dissolved trace and major metals and their partitioning in porewater sediment have been investigated at two sites in the Seine River estuary (France). For this purpose, solid phase extraction (SPE) has been employed using specific chelating resins for the separation and preconcentration of organic and inorganic forms of studied metals under controlled (N2) inert atmosphere. In fact, the study is focused on the development of a method for sample collection and handling under inert atmosphere in order to avoid some potential artefacts of the extracted porewater, to preserve the samples from possible chemical oxidation changes and to determine metals partitioning between organic and inorganic forms. For this point, a separation and preconcentration method using two columns in series (chelamine and C18 columns) was used. The trace and major metals fixed on the two resins for all determinations were stripped by nitric acid (2 M) and analyzed by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES) and Zeeman Graphite Furnace Atomic Absorption Spectroscopy (ZGF-AAS). The relationship between the distribution of metals and physico-chemical parameters such as pH and Eh (redox potential) as a function of depth was discussed. Some tendency in the distributions and seasonal variability of these traces and major metals are improved. The concentrations for all studied metals decreased as a function of depth where iron and manganese were found at mg L−1 levels and other metals were found at µg L−1 levels, as well as there were significant fractions of all metals (except of manganese) which were complexed by organic matter. The comparison of data for the major elements (Fe and Mn), obtained by direct determination (without preconcentration) and preconcentration, show a very good recovery.</div></front></TEI><affiliations><list><country><li>France</li><li>Liban</li></country><region><li>Hauts-de-France</li><li>Nord-Pas-de-Calais</li></region><settlement><li>Villeneuve d’Ascq</li></settlement></list><tree><country name="France"><region name="Hauts-de-France"><name sortKey="Ouddane, Baghdad" sort="Ouddane, Baghdad" uniqKey="Ouddane B" first="Baghdad" last="Ouddane">Baghdad Ouddane</name></region><name sortKey="Abbasse, Ghiasse" sort="Abbasse, Ghiasse" uniqKey="Abbasse G" first="Ghiasse" last="Abbasse">Ghiasse Abbasse</name><name sortKey="Abbasse, Ghiasse" sort="Abbasse, Ghiasse" uniqKey="Abbasse G" first="Ghiasse" last="Abbasse">Ghiasse Abbasse</name><name sortKey="Fischer, Jean Claude" sort="Fischer, Jean Claude" uniqKey="Fischer J" first="Jean Claude" last="Fischer">Jean Claude Fischer</name><name sortKey="Fischer, Jean Claude" sort="Fischer, Jean Claude" uniqKey="Fischer J" first="Jean Claude" last="Fischer">Jean Claude Fischer</name><name sortKey="Ouddane, Baghdad" sort="Ouddane, Baghdad" uniqKey="Ouddane B" first="Baghdad" last="Ouddane">Baghdad Ouddane</name></country><country name="Liban"><noRegion><name sortKey="Halwani, Jalal" sort="Halwani, Jalal" uniqKey="Halwani J" first="Jalal" last="Halwani">Jalal Halwani</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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