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Updated: Oct 9, 2026

Clean Sampling and Analysis of River and Estuarine Waters for Trace Metal Studies
Published on: July 1, 2016
Speciation of copper, lead and cadmium in aquatic systems by circulating dialysis combined with flame AAS
K Novotný1, A Turzíková, J Komárek
1Department of Analytical Chemistry, Masaryk University, Brno, Czech Republic.
Abstract:
The assessment of free Cu(II), Pb(II) and Cd(II) ions in the presence of complexed species was realised by a circulating dialysis with Cuprophan planar membranes and subsequent quantification by flame atomic absorption spectrometry. The effect of the flow rate, the time of equilibration, pH and the presence of various complexing agents in the donor solutions were studied. The determination of free Cu(II), Pb(II) and Cd(II) ions in the presence of soil humic substances resulted from the above studies.
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