A glassy carbon electrode modified with poly(bromocresol green) was prepared by electropolymerization process for simultaneous determination of uric acid, dopamine and ascorbic acid. The interface morphology and structure of poly(bromocresol green) film were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy. The simultaneous determination of uric acid (UA), dopamine (DA) and ascorbic acid (AA) in 0.1 M phosphate buffer solution (pH 6.0) was carried out by differential pulse voltammetric technique. Under optimum conditions, the results show that the peaks of three species were well separated. The proposed sensor exhibited linear responses to UA, DA and AA in the ranges of 0.5-200, 0.05-10 and 0.5-1000 mu M, respectively. Moreover, the poly(bromocresol green) modified electrode has been successfully applied to determine UA, DA and AA in human serum samples and vitamin C tablets. (C) 2015 Elsevier B.V. All rights reserved.
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Kuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, IndiaKuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, India
Chandra, Umesh
;
Swamy, B. E. Kumara
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Kuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, IndiaKuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, India
Swamy, B. E. Kumara
;
Gilbert, Ongera
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Kuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, IndiaKuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, India
Gilbert, Ongera
;
Sherigara, B. S.
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Kuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, IndiaKuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, India
机构:
Kuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, IndiaKuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, India
Chandra, Umesh
;
Swamy, B. E. Kumara
论文数: 0引用数: 0
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机构:
Kuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, IndiaKuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, India
Swamy, B. E. Kumara
;
Gilbert, Ongera
论文数: 0引用数: 0
h-index: 0
机构:
Kuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, IndiaKuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, India
Gilbert, Ongera
;
Sherigara, B. S.
论文数: 0引用数: 0
h-index: 0
机构:
Kuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, IndiaKuvempu Univ, Dept P G Studies & Res Ind Chem, Shimoga 577451, Karnataka, India