Electrochemical Sensor for Simple and Sensitive Determination of Hydroquinone in Water Samples Using Modified Glassy Carbon Electrode

This study addressed the use of manganese dioxide nanorods/graphene oxide nanocomposite (MnO2 NRs/GO) for modifying a glassy carbon electrode (GCE). The modified NRs/GO/GCE) was used as an electrochemical sensor determination hydroquinone (HQ) in water samples. Differential pulse voltammetry (DPV), cyclic (CV), and chronoamperometry were more analysis HQ behavior. Analyses revealed acceptable functions with lower transfer resistance electrons greater conductivity MnO2 NRs/GO/GCE. small peak-to-peak separation is indication rapid electron reaction. Therefore, this result probably related to effect NRs/GO on surface GCE. In concentration range 0.5 μM 300.0 detection limit 0.012 μM, there linear response between current. selectivity determined by detecting 50.0 presence various interferent molecules. At end, results implied outcome prepared determining