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Graphene Nanocomposite Modified Glassy Carbon Electrode: As a Sensing Platform for Simultaneous Determination of Methyldopa and Uric Acid
2017
International Journal of Electrochemical Science
Fe 3 O 4 @SiO 2 /GO nanocomposite was synthesized and used for surface modification of glassy carbon electrode. This modified electrode was used for electrochemical determination of methyldopa (MD) in the presence of uric acid (UA). Operational parameters such as amount of solution pH and scan rate which affected the analytical performance of the modified electrode were optimized. The calibration curve for MD was linear in the range of 0.1-400.0 µM with the detection limit (S/N=3) of 86.0 nM.
doi:10.20964/2017.01.41
fatcat:hhtqbywvyrhszjl7tczp64arki