Application of a Carbon‐Paste Electrode Modified with 2,7‐Bis(ferrocenyl ethyl)fluoren‐9‐one and Carbon Nanotubes for Voltammetric Determination of Levodopa in the Presence of Uric Acid and Folic Acid |
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| Authors: | Hadi Beitollahi Jahan‐Bakhsh Raoof Rahman Hosseinzadeh |
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| Institution: | 1. Environmet Department, Research Institute of Environmental Sciences, International Center for Science, High Technology & Environmental Sciences, Kerman, Iran phone: 00983426226613;2. fax: 00983426226617;3. Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry,University of Mazandaran, Babolsar, Iran;4. Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran |
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| Abstract: | A carbon‐paste electrode modified with 2,7‐bis(ferrocenyl ethyl)fluoren‐9‐one and carbon nanotubes was used for the sensitive voltammetric determination of levodopa (LD). The electrochemical response characteristics of the modified electrode toward LD, uric acid (UA) and folic acid (FA) were investigated. The results showed an efficient catalytic activity of the electrode for the electrooxidation of LD, which leads to lowering its overpotential by more than 320 mV. The modified electrode exhibits an efficient electron mediating behavior together with well‐separated oxidation peaks for LD, UA and FA. Also, the modified electrode was used for determination of LD in some real samples. |
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| Keywords: | Levodopa Uric acid Folic acid Carbon nanotubes Modified electrode Electrocatalysis |
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