Electrochemical determination of vitamin B6 (pyridoxine) by reformed carbon paste electrode with iron oxide nanoparticles

Abstract This work aims to introduce a simple high-performance sensitive electrochemical sensor of reformed carbon paste (CP) with iron oxide nanoparticles (IONs). It was developed determine one the most important drugs called vitamin B 6 in medium phosphate buffer (PBS) over pH ranging from 5.0 8.0. The and surface characterization achieved by different techniques comprising impedance spectroscopy (EIS), cyclic voltammetry (CV), differential pulse (DPV), scanning electron microscopy (SEM). studied effects were, pH, buffer, interference, scan rate, accumulation time, calibration plot. electrode produced linear curve concentration range 8.88 up 1000.0 µM, limits detection qualification estimated at 9.06 30.2 respectively Also, this method established human urine real samples pharmaceutical which have been shown good result for detection.