ELECTROCHEMICAL SENSOR FOR THE DETERMINATION OF NICOTINIC ACID ON GLASSY CARBON ELECTRODE

A differential pulse voltammetric (DPV) method for the sensitive determination of nicotinic acid (NA) using a glassy carbon electrode (GCE) is presented in this study. Nicotinic acid, a crucial biomolecule involved in various metabolic pathways, requires accurate and reliable analytical methods for its quantification. The proposed method employs a GCE ,which showed to be the best electrode for the determination of nicotinic acid. The voltammetric behavior of nicotinic acid was investigated in a suitable supporting electrolyte and the effects of various experimental parameters such as scan rate, pulse amplitude, pulse frequency, pH were optimized.