Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan
A simple and convenient method is described for voltammetric determination of carbidopa (CD), based on its electrochemical oxidation at a modified multiwall carbon nanotube paste electrode. Under optimized conditions, the proposed method exhibited acceptable analytical performances in terms of linea...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Journal of Analytical Methods in Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2012/305872 |
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| author | Sakineh Esfandiari Baghbamidi Hadi Beitollahi Hassan Karimi-Maleh Somayeh Soltani-Nejad Vahhab Soltani-Nejad Sara Roodsaz |
| author_facet | Sakineh Esfandiari Baghbamidi Hadi Beitollahi Hassan Karimi-Maleh Somayeh Soltani-Nejad Vahhab Soltani-Nejad Sara Roodsaz |
| author_sort | Sakineh Esfandiari Baghbamidi |
| collection | DOAJ |
| description | A simple and convenient method is described for voltammetric determination of carbidopa (CD), based on its electrochemical oxidation at a modified multiwall carbon nanotube paste electrode. Under optimized conditions, the proposed method exhibited acceptable analytical performances in terms of linearity (over the concentration range from 0.1 to 700.0 μM), detection limit (65.0 nM), and reproducibility (RSD=2.5%) for a solution containing CD. Also, square wave voltammetry (SWV) was used for simultaneous determination of CD, folic acid (FA), and tryptophan (TRP) at the modified electrode. To further validate its possible application, the method was used for the quantification of CD, FA, and TRP in urine samples. |
| format | Article |
| id | doaj-art-9ff2302b7a984ccba4cb51fe3d61a874 |
| institution | Kabale University |
| issn | 2090-8865 2090-8873 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Analytical Methods in Chemistry |
| spelling | doaj-art-9ff2302b7a984ccba4cb51fe3d61a8742025-02-03T01:22:07ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732012-01-01201210.1155/2012/305872305872Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and TryptophanSakineh Esfandiari Baghbamidi0Hadi Beitollahi1Hassan Karimi-Maleh2Somayeh Soltani-Nejad3Vahhab Soltani-Nejad4Sara Roodsaz5Islamic Azad University, Bandar Abbas Branch, Bandar Abbas 7915893144, IranEnvironment Department, Research Institute of Environmental Sciences, International Center for Science, High Technology & Environmental Sciences, Kerman 7631133131, IranDepartment of Chemistry, Science and Research Branch, Islamic Azad University, Mazandaran 4816819195, IranIslamic Azad University, Bandar Abbas Branch, Bandar Abbas 7915893144, IranDepartment of Chemistry, Islamic Azad University, North Tehran Branch, Tehran 1913674711, IranDepartment of Chemistry, Islamic Azad University, North Tehran Branch, Tehran 1913674711, IranA simple and convenient method is described for voltammetric determination of carbidopa (CD), based on its electrochemical oxidation at a modified multiwall carbon nanotube paste electrode. Under optimized conditions, the proposed method exhibited acceptable analytical performances in terms of linearity (over the concentration range from 0.1 to 700.0 μM), detection limit (65.0 nM), and reproducibility (RSD=2.5%) for a solution containing CD. Also, square wave voltammetry (SWV) was used for simultaneous determination of CD, folic acid (FA), and tryptophan (TRP) at the modified electrode. To further validate its possible application, the method was used for the quantification of CD, FA, and TRP in urine samples.http://dx.doi.org/10.1155/2012/305872 |
| spellingShingle | Sakineh Esfandiari Baghbamidi Hadi Beitollahi Hassan Karimi-Maleh Somayeh Soltani-Nejad Vahhab Soltani-Nejad Sara Roodsaz Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan Journal of Analytical Methods in Chemistry |
| title | Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan |
| title_full | Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan |
| title_fullStr | Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan |
| title_full_unstemmed | Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan |
| title_short | Modified Carbon Nanotube Paste Electrode for Voltammetric Determination of Carbidopa, Folic Acid, and Tryptophan |
| title_sort | modified carbon nanotube paste electrode for voltammetric determination of carbidopa folic acid and tryptophan |
| url | http://dx.doi.org/10.1155/2012/305872 |
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