Abstract
The transfer of Cd(II) assisted by dithizone (DzH2) present in methyl isobutyl ketone (MIBK) at water–MIBK interface was systematically investigated by novel electrolyte dropping electrode (EDE) using cyclic voltammetry (CV) and square wave voltammetry (SWV). The protonation of DzH2 at polarized liquid–liquid interface was studied. The stoichiometry of resulting metal ligand complex was formulated. Transfer peak current was proportional to the bulk concentration of the Cd(II) varied between 1 μM to 0.1 mM and the maximum value of relative standard deviation was about 3.17%. The presented procedure was successfully applied for determination of Cd(II) in real samples.
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