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Differential Pulse Voltammetry of Lead(II) ton at Nation- EDTA-Glycerol Modified Glassy Carbon Electrodes  

박상희 (전남대학교화학과 화학교육과)
박찬주 (전남대학교화학과 화학교육과)
박은희 (전남대학교화학과 화학교육과)
고영춘 (대불대학교 화학환경공학과)
정근호 (대불대학교 화학환경공학과)
Publication Information
Journal of Environmental Health Sciences / v.28, no.5, 2002 , pp. 53-58 More about this Journal
Abstract
A method for the determination of lead(II) ion using a nafion-EDTA(ethylene diamine tetraacetic acid)-glycerol modified glassy carbon electrode was proposed. Lead(II) ion is accumulated at the electrode by complexation and electrostatic attraction with nafion-EDTA-glycerol and detected at -0.560$\pm$0.015V (vs. Ag/AgCl) by differential pulse voltammetry. For the determination of lead(II) ion, a standard calibration curve if obtained from 10$^{-9}$ M lead(II) ion to 10$^{-7}$ M, and the detection limit(3s) is as low as 5.0$\times$10$^{-10}$ M.
Keywords
Lead(II); Nafion; EDTA; Glycerol;
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