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초록
영어
Determination of cobalt(III) ion with a perfluorinated sulfonated polymer-ethylenediamine (nafion-en) modified glassy carbon electrode is studied. It is based on the chemical reactivity of an immobilized layer, nafion-en, to yield complex [Co(en)3]3+. The reduction peak potential by differential pulse voltammetry (DPV) is observed at - 0.437±0.047 V (vs. Ag/ AgCl). The linear calibration curve is obtained in cobalt(III) ion concentration range 1.0×10-8~1.0× 10-3 M (5.893×10-12~ 5.893×10-5 g/mL).
목차
Abstract
1. Introduction
2. Experimental Section
2.1. Reagents
2.2. Instruments
2.3. Working Electrode
2.4 Experimental Methods and Stability of Nafion-en Modified Glassy Carbon Electrode
3. Results and Discussion
3.1. Optimal Composition of a Chemical Modified Electrode
3.2. Quantification of Co(III) Ion by Differential Pulse Voltammetry Using Nafion-en Modified Electrode
3.3. Effect of Interfering Ions
4. Conclusions
Acknowledgments
References
1. Introduction
2. Experimental Section
2.1. Reagents
2.2. Instruments
2.3. Working Electrode
2.4 Experimental Methods and Stability of Nafion-en Modified Glassy Carbon Electrode
3. Results and Discussion
3.1. Optimal Composition of a Chemical Modified Electrode
3.2. Quantification of Co(III) Ion by Differential Pulse Voltammetry Using Nafion-en Modified Electrode
3.3. Effect of Interfering Ions
4. Conclusions
Acknowledgments
References
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