کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5410236 | 1506556 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of phenazopyridine sensor based on electrodeposition of Pt nanoparticles on H-CaFe-Cl-layered double hydroxide film modified glassy carbon electrode
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
A sensitive phenazopyridine sensor has been developed by electrodeposition of Pt nanoparticles on H-CaFe-Cl-layered double hydroxide modified glassy carbon. Electrochemical impedance spectroscopy and cyclic voltammetry were used to investigate the formation of H-CaFe-Cl-layered double hydroxide film and Pt nanoparticles on the electrode surface. The properties of modified electrode were characterized by field emission scanning electron microscopy and energy dispersive X-ray spectroscopy. The fabricated sensor exhibits outstanding electrocatalytic activities toward the oxidation of phenazopyridine. The oxidation peak current was proportional to the concentration of phenazopyridine from 5 Ã 10â 8 to 6.9 Ã 10â 4 mol Lâ 1 including two linear segments with a detection limit of 6.3 Ã 10â 9 mol Lâ 1 at signal to noise ratio of 3. The proposed method was examined as a selective, simple and precise method for voltammetric determination of phenazopyridine in real samples with satisfactory results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 214, February 2016, Pages 207-213
Journal: Journal of Molecular Liquids - Volume 214, February 2016, Pages 207-213
نویسندگان
F. Hasanpour, M. Taei, M. Movahedi, A. Pazir,