Abstract:
In this work, the electrochemical determination of clioquinol on the electrode, modified by
the squaraine dye complex with copper sulfide nanoparticles, is described. The electroanalytical process
begins with the analyte hydrolysis, followed by its hybrid oxidation by the pyridinic nitrogen atom and
the hydroxyquinole moiety. The indirect electropolymerization scenario, in its turn, isn´t discarded
either. The analysis of the correspondent model indicates the efficiency of the aquaraine dye/nano-CuS
composite as an efficient electrode modifier for clioquinol electrochemical determination. The
electroanalytical process is easy to conduct, and the analytical signal is easy to interpret. Contrarily to
the acidic medium, the possibility of oscillatory and monotonic instability is less expressed.
