Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Differential Pulse Voltammetric Determination of Iron(II) ion with a Nafion-Ethylenediamine Modified Glassy Carbon Electrode

Nafion-ethylenediamine이 수식된 유리탄소전극에 의한 시차펄스전압전류법으로 철(II) 이온의 정량

  • Kyong Wone Kim (Department of Chemical/Environmental Engineering, Daebul University) ;
  • Hee Cheol Kim (Department of Chemical/Environmental Engineering, Daebul University) ;
  • Sung-Hyun Kim (Regional Office of Gwangju-Chonnam Small and Medium Business Adminstration) ;
  • Byung Ho Park (Kuhmho R&D center) ;
  • Yeon Hee Kim (Health and Environment Institute of Gwangju) ;
  • Kyong Nam Kim (Department of Chemical/Environmental Engineering, Daebul University) ;
  • Yong Chun Ko (Department of Chemical/Environmental Engineering, Daebul University)
  • 김경원 (대불대학교 화학환경공학과) ;
  • 김희철 (대불대학교 화학환경공학과) ;
  • 김성현 (광주전남지방 중소기업청) ;
  • 박병호 (금호R&D센터) ;
  • 김연희 (광주보건환경연구원) ;
  • 김경남 (대불대학교 화학환경공학과) ;
  • 고영춘 (대불대학교 화학환경공학과)
  • Published : 2003.04.20

Abstract

Determination of iron(II) ion with a perfluorinated sulfonated polymer(nafion)-ethylenediamine(en) modified glassy carbon electrode was studied. It was based on the chemical reactivity of an immobilized layer(nafion-en) to yield complex $[Fe(en)_3]^{+2}$. The oxidation peak potential by differential pulse voltammetry(DPV) was observed at 0.340${\pm}$0.015 V(vs. Ag/AgCl). The linear calibration curve was obtained in iron(II) ion concentration range $5{\times}10^{-6}{\sim}0.2{\times}10^{-3} M(0.28{\sim}11.17\; mg/L)$, and the detection limit(3s) was $1.89{\times}10^{-5}$M(1.056 mg/L).

Keywords

Iron(II) ion;Differential Pulse Voltammetry(DPV)

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