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 This research applied a nanostructured electrochemical sensor with screen-printed electrode (SPE) for examining the dopamine (DA) electrocatalytic oxidation when uric acid (UA) was present. Cu(salophen) modified SPE Cu(salophen)/SPE employed to investigate behavior of DA. At optimal pH (pH 7.0), DA at takes place potential around 100 mV less positive than unmodified SPE. Chronoamperomet...

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 oxidatio...

Recent work has reported the first electroanalytical detection of pindolol using reduced graphene oxide (RGO) modified glassy carbon electrodes [S. Smarzewska and W. Ciesielski, Anal. Methods, 2014, 6, 5038] where it was reported that the use of RGO provided significant improvements in the electroanalytical signal in comparison to a bare (unmodified) glassy carbon electrode. We demonstrate, for...

Background: Diazepam belongs to the group of 1,4-benzodiapines. It is used for treatment anxiety, convulsions and as muscle relaxants. The presence a 4,5-azomethine enables its electrochemical detection. Introduction: A screen-printed electrode modified with antimony film was determination diazepam in pharmaceutical preparations Methods: Electrode modification done by ex-situ deposition on comm...