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

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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@article{ JCGMDC_2003_v47n2_115} ,title={Differential Pulse Voltammetric Determination of Iron(II) ion with a Nafion-Ethylenediamine Modified Glassy Carbon Electrode} ,volume={2} , url={http://dx.doi.org/10.5012/jkcs.2003.47.2.115}, DOI={10.5012/jkcs.2003.47.2.115} , number= {2} , journal={Journal of the Korean Chemical Society} , publisher={Korean Chemical Society} , author={Kyong Wone, Kim and Hee Cheol, Kim and Sung-Hyun, Kim and Byung Ho, Park and Yeon Hee, Kim and Kyong Nam, Kim and Yong Chun, Ko} , year={2003} , month={Apr}