کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5412882 | 1393454 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical deposition of 1-butyl-4-methyl-pyridinium tetrafluroborate ionic liquid on carbon paste electrode and its application for the simultaneous determination of dopamine, ascorbic acid and uric acid
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Negatively charged 1-butyl-4-methyl-pyridiniumtetrafluroborate (BMPTB) ionic liquid was electrochemically deposited on the surface of carbon paste electrode (CPE) by cyclic voltammetric (CV) technique in 0.1 M nitric acid. It exhibited an electrocatalytic activity towards the oxidation of DA, AA, and UA in 0.1 M phosphate buffer solution (pH 6.6). The effect of concentration, scan rate, and pH was studied for dopamine. The BMPTB/CPE showed an excellent electrocatalytic activity for selective detection of DA in the presence of AA and UA by using CV and differential pulse voltammetry (DPV) respectively. Detection limit of dopamine was found to be 1 Ã 10â 8 M. The present technique provides a novel method for the simultaneous determination of DA, AA and UA in their mixture sample.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 158, Issue 1, 1 January 2011, Pages 13-17
Journal: Journal of Molecular Liquids - Volume 158, Issue 1, 1 January 2011, Pages 13-17
نویسندگان
Mundargi Pandurangachar, Bahaddurghatta E. Kumara Swamy, Bannanakere N. Chandrashekar, Ongera Gilbert, Bailure S. Sherigara,