publication . Article . 2003

Stability study on a Westöö-based methodology to determine organomercury compounds in polluted soil samples

Xavier Gaona; Manuel Valiente;
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  • Published: 04 Mar 2003 Journal: Analytica Chimica Acta, volume 480, pages 219-230 (issn: 0003-2670, Copyright policy)
  • Publisher: Elsevier BV
Abstract
This paper concerns with the evaluation of a speciation methodology for organomercury compounds in soil samples. The methodology used is based on the Westoo method, which includes an acid leaching of the soil followed by an organic solvent extraction and a re-extraction with a selective aqueous reagent (cysteine). The separation and quantification of organomercury compounds is achieved by capillary electrophoresis technique, using an ultraviolet-visible detection system (HPCE-UV). The main steps in the speciation process are discussed, from the point of view of possible degradation processes. Frozen, de-frozen and non-frozen soil samples have been analyzed, char...
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free text keywords: Analytical Chemistry, Spectroscopy, Biochemistry, Environmental Chemistry, Organomercury, chemistry.chemical_compound, chemistry, Chromatography, Leaching (metallurgy), Soil test, Aqueous solution, Capillary electrophoresis, Aqueous two-phase system, Reagent, Organomercury Compounds
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