Preparation of Carboxyl Functionalized Graphene Self-Assembled Monolayer and Its Electrochemical Determination of Paracetamol
LI Yuhui
JIANG Yingying
MO Tao
GUO Qingbiao
LI Yancai
Abstract：Carboxyl functionalized graphene(CFG)self-assembled monolayers(SAMs)were prepared on the carboxylated glassy carbon electrode based on covalent interaction.The morphology and structure of the film were characterized by scanning electron microscope(SEM),Fourier transform infrared(FT-IR) and atomic force microscopy(AFM).The electrochemical and electrocatalytic property of the CFG modi-fied electrode was explored carefully by electrochemical impedance spectroscopy(EIS),cyclic voltamme-try(CV)and differential pulse voltammetry(DPV).The modified electrode presents favorable electro-chemical performance and possesses good electrocatalytic activity for paracetamol.Under optimal condi-tions,the CFG modified electrode displays a linear range from 1 to 400 μmol/ L and a detection limit of 0.13 μmol/ L(S / N= 3)to paracetamol.And it was successfully applied to the actual of paracetamol sam-ple.Moreover,it also displays good selectivity and stability.
Keywords：carboxyl functionalized graphenecovalent self-assembledelectrocatalysisparacetamol
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 68-73 )