MnO2 nanorods modified screen-printed electrode for the electrochemical determination of Sudan dye in food sample

A novel MnO2 nanorods modified screen-printed electrode was fabricated and used as a voltammetric sensor for Sudan determination. were characterized using Field emission-scanning electron microscopy (FE-SEM). Electrochemical measurements performed cyclic voltammetry (CV), linear sweep (LSV), differential pulse (DPV), chronoammperometry (CA). The on the surface act an excellent catalyst oxidation reaction. Our presents good electrocatalytic activity toward Sudan, short response time of <10 s, low detection limit around 0.08 µM, range from 0.25 to 300.0 µM.