Title of article :
SiO2@Fe3O4 Nanocomposite Decorated Graphene Modified Carbon Ionic Liquid Electrode as an Electrochemical Sensor for the Determination of Tyrosine
Author/Authors :
Foroughi, Mohammad Mehdi Department of Chemistry - Faculty of Sciences - Islamic Azad University Kerman Branch , Tajik, Somayeh yEnvironment Department - Institute of Science and High Technology and Environmental Sciences - Graduate University of Advanced Technoloy
Abstract :
SiO2@Fe3O4/GR nanocomposite decorated graphene modified carbon ionic liquid electrode (SiO2@Fe3O4/GR/IL/CPE) was prepared. The electrochemical behavior of tyrosine was studied in 0.1 M phosphate buffer solution (PBS) of pH 7.0 using cyclic voltammetry (CV) while differential pulse voltammetry (DPV) was used for quantification. Under optimum condition, the DPV response offered linear dynamic range for tyrosine in the concentration range 1.0×10−6 M–8.0×10−4 M with detection limit 5.0×10−7 M (S/N=3). The method was successfully applied for determination of tyrosine in real samples
Keywords :
Tyrosine , Ionic liquid , SiO2@Fe3O4/GR nanocomposite , Carbon paste electrode
Journal title :
Astroparticle Physics
