کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10276155 | 463419 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Selective determination of dopamine in the presence of ascorbic acid at the carbon atom wire modified electrode
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
To determine dopamine (DA) in the presence of high concentration of ascorbic acid (AA), a glassy carbon electrode modified by carbon atom wires (CAWs), a kind of new homemade material, was investigated by cyclic voltammetry. It was found that the electrochemical responses of DA were affected by the presence of AA, the pH value of the electrolytic solution and an acid treated process on CAWs. The HNO3 treated CAW modified electrode exhibited excellent ability to discriminate DA from AA by means of cyclic voltammetry and the separation of their anodic peak potentials was apart as wide as 0.298Â V in pH 6.00 phosphate buffer solution containing 0.50Â mM DA and 5.00Â mM AA at the scan rate of 50Â mV/s at the modified electrode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 578, Issue 2, 1 May 2005, Pages 323-329
Journal: Journal of Electroanalytical Chemistry - Volume 578, Issue 2, 1 May 2005, Pages 323-329
نویسندگان
Kuan-Hong Xue, Fei-Fei Tao, Wen Xu, Shou-Yin Yin, Jia-Mei Liu,