Abstract
Amino-group functionalized mesoporous Fe3O4 nanoparticles were prepared by a simple solvothermal method. Palladium (Pd)-loaded amino-group functionalized mesoporous Fe3O4 nanoparticles (Pd@Fe3O4) were prepared with ethanol as the reductant. Pd@Fe3O4 modified the glassy carbon electrode (GCE) exhibited excellent electrochemical catalytic activities towards dopamine (DA) due to the synergetic effect between Pd and Fe3O4. Electrochemical behavior of Pd@Fe3O4/GCE towards DA was studied using square wave voltammetry and the selective determination of DA was carried out successfully at high concentration of uric acid. A wide concentration range (0.96–107μmol/L) and low detection limit (0.41μmol/L, S/N=3) for the determination of DA were obtained. The advantageous properties of this electrode for the DA determination lie in its excellent catalytic activity, selectivity and simplicity. The prepared sensor had been applied to the analysis of DA in human serum samples with satisfactory results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
