Synthesis of magnesium oxide/graphene nanocomposite and its application in ultra-trace level detection of dopamine

In a recent study, magnesium oxide nanoparticles were synthesized by the combustion sol gel method. Then, magnesium oxide and graphene nanocomposites were prepared by a simple and low-cost method. The glassy carbon electrode was modified with this synthetic nanocomposite. The size and morphology of the mentioned nanoparticles were investigated by field emission scanning electron microscopy (FESEM). The modified electrode was applied for the determination of dopamine with high sensitivity. The effective parameters on sensor response were optimized and cyclic voltammetry was used for detection of ultra-trace amounts of dopamine

Keywords:

nanocomposite , Magnesium oxide Nanoparticle , cyclic voltammetry , electrochemical sensor , dopamine