NDLI: Determination of metal partitioning in porewater extracted from the Seine River Estuary sediment (France)

Content Provider	Royal Society of Chemistry (RSC)
Author	Ouddane, Baghdad Abbasse, Ghiasse Fischer, Jean Claude Halwani, Jalal
Copyright Year	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.
Starting Page	243
Ending Page	253
Page Count	11
File Format	HTM / HTML PDF
ISSN	14640325
Volume Number	6
Issue Number	4
Journal	Journal of Environmental Monitoring
DOI	10.1039/b312903a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Zeeman Graphite Furnace Atomic Absorption Spectroscopy Seine River France Sediment Seine Estuary Solid phase extraction Acid Inductively coupled plasma atomic emission spectroscopy PH Redox Manganese
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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