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Comparison of the behaviours of copper, cadmium and lead in the presence of humic acid in sodium chloride solutions

✍ Scribed by M. Plavšicć; B. Ćosović; S. Miletíc

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
584 KB
Volume
255
Category
Article
ISSN
0003-2670

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✦ Synopsis

The electrocheuucal oxldatlon-reduction processes of copper, cadmmm and lead m the presence of hums. actd (HA) m sodmm chlonde solutions were compared, ta!ung mto account the differences m the speaatlon of these. heavy metal tons and the type of the HA used The complexatlon propeties of HA for the metal ions m the solution were studled The adsorptlon propertles of the HA and the Influence of the adsorbed layer of HA formed at the mercury electrode/solution interface were exammed The electrochemical processes of copper Ions are mainly Influenced by the complexatlon propertles of HA, whereas cadmmm and lead are mamly mfluenced by the presence of the adsorbed layer of HA on the electrode surface Keyword Dlfferentlal pulse voltammetry, Cadmmm, Copper, Humlc acid, Lead, Waters

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