A PABSA/GN/GCE composite-modified electrode was fabricated by using a graphene nanosheets(GN) modified glassy carbon electrode(GCE)electropolymerized with p-aminobenzene sulfonic acid(PABSA).The electrochemical behaviors of uric acid(UA) and ascorbic acid(AA) on the nanocomposites-modified electrode were investigated.Compared with PABSA/GCE and GN/GCE,the PABSA/GN/GCE improved the resolution and the sensitivity for the determination of UA in the presence of AA.In 0.1 mol/L phosphate buffer solution(pH 7.0),a peak to peak separation of 344 mV was observed,which enabled the selective determination of UA.The peak currents obtained from DPV were linearly related to concentrations of UA in the range of 1.0×10-7-8.0×10-4 mol/L.The detection limit was 4.5×10-8 mol/L.The nanocomposites-modified electrode was adopted for the detection of UA in the human urine with satisfactory result.
Fabrication of Morin Incorporated Graphene Modified Electrode and Its Selective and Sensitive Determination of Dopamine
Determination of Oxalic Acid in Urine Using an Electrochemical Alloy-Dealloying Prepared Platinum Nanoparticles Modified Electrode
Detection of Naphthoacetic Acid Using an Electrochemical Sensor Sensitivity-enhanced with Multi-walled Carbon Nanotubes
Preparation of N-doped Ordered Mesoporous Carbon Modified Electrode by Hard Template Method for Detection of Nefopam Hydrochloride
Electrochemical Detection of 1 Hydroxypyrene Using a Nano Platinum/Graphene Modified Electrode
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College of Chemistry and Chemical Engineering,Yan’an University,Yan’an
Shaanxi Key Laboratory of Chemical Reaction Engineering,Yan’an
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