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Modification of the electrode surface by ag nanoparticles decorated nano diamond-graphite for voltammetric determination of ceftizoxime
, Article Electroanalysis ; Volume 28, Issue 3 , 2016 , Pages 469-476 ; 10400397 (ISSN) ; Ranjbar, S ; Ghalkhani, M ; Sharif University of Technology
Wiley-VCH Verlag
2016
Abstract
A modified glassy carbon electrode with a film of nano diamond-graphite nano mixture decorated with Ag nanoparticles (AgNPs-NDG/GCE) was constructed and used for sensitive voltammetric determination of ceftizoxime (CFX). Morphology of AgNPs-NDG/GCE has been examined by scanning electron microscopy (SEM) and atomic force microscopy (AFM). Experimental variables such as deposited amount of the modifier suspension, pH of the supporting electrolyte and accumulation potential and time were optimized by monitoring of CV and LSV responses of CFX. The results illustrate that AgNPs-NDG/GCE exhibits an excellent electrocatalytic effect in the electro-oxidation of CFX that leads to a considerable...