Article ID Journal Published Year Pages File Type
1242664 Talanta 2010 7 Pages PDF
Abstract

In this work for first time, the electrocatalytic oxidations of some cephalosporins were carried out by poly(o-anisidine)/SDS/Ni modified carbon paste electrode using cyclic voltammetry, chronoamperometry and chronocoulometry methods. At first, poly(o-anisidine) was formed by cyclic voltammetry in monomer solution containing sodium dodesyl sulfate (SDS), on carbon paste electrode surface. Then, Ni(II) ions were incorporated to electrode by immersion of the polymeric modified electrode having amine group in 0.1 mol L−1 Ni(II) ion solution. A good redox behavior was observed for the Ni(OH)2/NiOOH couple on the surface of this electrode. Cephalosporins were successfully oxidized on the surface of this nickel ions dispersed poly(o-anisidine) modified carbon paste electrode. The electrocatalytic oxidation peak currents of cephalosporins were linearly dependent on their concentration. Electrode was successfully applied to determine cephalosporins in pharmaceutical preparations.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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