Abstract
Nickel ferrite-Activated carbon nanocomposite was proposed for selective electrochemical detection of dopamine. The nanocomposite was prepared by a simple hydrothermal method and the morphology as well as the crystal pattern was analyzed using transmission electron microscope (TEM) and X-ray diffraction (XRD) respectively. The electrochemical response for dopamine was studied using cyclic voltammetry (CV). The NiFe2O4-AC/GCE showed good catalytic activity towards dopamine and a detection limit of 1 µM and linear range from 100 µM – 700 µM was deduced using differential pulse voltammetry (DPV). The selective detection of dopamine in presence of ascorbic acid (AA) and uric acid (UA) was accomplished. The reproducibility and stability of the modified electrode towards dopamine detection was demonstrated.
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