Perfluorinated sulfonated polymer(Nafion)-ethylenediamine(en)이 화학수식된 유리탄소전극으로 Fe(II) 이온의 정량에 대해 연구하였다. Fe(II) 이온의 착화제인 en을 nafion에 고정시켜 유리탄소전극 표면에 수식하면 이 수식전극의 en은 Fe(II) 이온과 $[Fe(en)_3]^{+2}$의 착물을 형성한다. Nafion-en이 화학수식된 유리탄소전극에서 시차펄스전압전류법에 의한 Fe(II) 이온의 산화봉우리전위는 0.340${pm}$0.015 V(vs. Ag/AgCl), 측정범위는 $5{ imes}10^{-6}{sim}0.2{ imes}10^{-3} M(0.28{sim}11.17 mg/L)$, 검출한계(3s)는 $1.89{ imes}10^{-5}$M(1.056 mg/L)이었다.
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 $5{ imes}10^{-6}{sim}0.2{ imes}10^{-3} M(0.28{sim}11.17; mg/L)$, and the detection limit(3s) was $1.89{ imes}10^{-5}$M(1.056 mg/L).
