Electrochemical Studies of Dopamine at Lithium Zirconate/SDS Modified Carbon Paste Electrode: A Cyclic Voltammetric Study

Li2zro3 nanoparticles were synthesized by the gel combustion process. thesynthesized nanoparticles were characterized by x-ray diffraction (xrd) and scanningelectron microscopy (sem). the synthesized li2zro3 nanoparticles were used for themodification of carbon paste electrode and sodium docylsulphate (sds) anionic surfactantwas further modified by the immobilization technique for the electrochemical determinationfor dopamine at ph 7.2 phosphate buffer solution. the modified carbon paste electrode sds/li2zro3 shows excellent electrochemical sensor for dopamine and also in the simultaneousdetermination dopamine, ascorbic acid and uric acid. the modified electrode showed highsensitivity, high reproducibility, easy preparation and regeneration of the electrode surface.