Title of article :
Electrochemical Sensing of Theophylline using Modified Glassy Carbon Electrode
Author/Authors :
Sharifi Pour ، Effat Department of Chemistry - Graduate University of Advanced Technology , Ebrahimi ، Maryam Department of Chemistry - Graduate University of Advanced Technology , Beitollai ، Hadi Environment Department - Institute of Science and High Technology and Environmental Sciences - Graduate University of Advanced Technology
Abstract :
In this work, three dimensional NiO nanowrinkles (3D NiO-NWs) were prepared and used as electrode materials to modify the surface of a glassy carbon electrode (3D NiO-NWs/GCE). Then, differential pulse voltammetry (DPV), cyclic voltammetry (CV) and chronoamperometry (CHA) were employed to determine the electrochemical response of theophylline on as-fabricated sensor. The electrochemical theophylline oxidation was elevated on the modified electrode. The peak current on the modified electrode in phosphate buffer solution (PBS, 0.1 M, pH=7.0) showed a linear elevation with an increase in the theophylline concentration (0.1-900.0 μM), with a narrow detection limit of 0.03±0.001 μM.
Keywords :
Theophylline , Three dimensional NiO nanowrinkles , Glassy carbon electrode , Differential pulse voltammetry
Journal title :
Chemical Methodologies
Journal title :
Chemical Methodologies
