DEVELOPMENT OF INVERSION-VOLTAMPEROMETRIC DETERMINATION METHOD OF CO (II) ION USING TROPEOLINE MODIFIED ELECTRODE
Cobalt(II) ion was determined by inversion-voltammetric method using a carbon paste electrode modified with tropeolin.
Optimum conditions for creating a modified electrode were found, according to which the ratio of paraffin, graphite, tropeolin
was 1:1:0.025. Complex formation of cobalt with sodium salt of 4-(4-anilinophenylazo)-benzosulfonic acid (Tropeolin00) was
determined by cyclic voltammetry (SV) method. A universal buffer pH 2.58 solution was used as the optimal environment for the
formation of a complex of Co (II) ion. The results were compared with those obtained based on a platinum electrode.
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