Abstract
Abstract Graphene oxide mixed carbon paste electrode was used to look into the electrochemical performance of bio-active drug, mefenamic acid using voltammetry technique. The outcome of effect of pH, accumulation time, concentrations, scan rate, and excipients were studied. Quantitative determination of mefenamic acid conceded using highly sensitive differential pulse voltammetric method. The detection limit was found to be 0.95 nM for the concentration range 7.0 x 10-7 M to 1.0 x 10-10 M. A possible equal number of electron and proton found mechanism of electrochemical oxidation of mefenamic acid was proposed, and activation parameters ΔH≠ = 26.56 kJ mol-1, ΔS≠ = -248.7J K-1 mol-1, Ea = 29.04 kJ mol-1 were determined.
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