Nitrogen-doped Graphene Modified Glassy Carbon Electrode for Anodic Stripping Voltammetric Detection of Lead Ion

摘要

Nitrogen-doped (NG) graphene modified glassy carbon electrode was prepared for sensitive2+ electrochemical investigation on lead ion (Pb ) with differential pulse anodic stripping voltammetry.2+ Due to the large surface area, excellent conductivity and good adsorption ability of NG nanosheet, Pbcan be accumulated and detected with enhanced voltammetric response in the concentration range-9 -5 -9 from 9.010 mol/L to 9.010 mol/L. The detection limit was calculated as 1.9110 mol/L and theproposed method was applied to fish powder sample determination.