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MES research in electrode, membrane. Mercury coated platinum microelectrodes were employed for the in situ determination, in soils and po...

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Abstract

Mercury coated platinum microelectrodes were employed for the in situ determination, in soils and porewater of sediments, of redox key species of environmental interest. Sand samples were considered as soil model for the in situ detection of oxygen. Direct measurements of sulphide were performed in anoxic sediments collected in the Lagoon of Venice. An investigation on the interaction among heavy metals, sulphide and solid particles in pore-water extracted from the sediments was also performed. For the quantification of the various electroactive species examined, calibrantioless procedures were employed.

Keywords

MicroelectrodeAnoxic watersIn situEnvironmental chemistryMercury (programming language)Redox

Identifiers

DOI
10.1590/S0103-50532002000400004
Journal
Journal of the Brazilian Chemical Society
Year
2002