Voltammetric Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid at Poly (Xylenol Orange) Film-Coated Graphite Pencil Electrode
Poly (xylenol orange) film-coated graphite pencil electrode was fabricated for the detection of dopamine in the presence of ascorbic acid and uric acid in phosphate buffer solution of pH 7. The redox peaks obtained at modified electrode shows a good enhancement. The scan rate effect was found to be...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Electrochemistry |
| Online Access: | http://dx.doi.org/10.4061/2011/512692 |
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| author | Umesh Chandra B. E. Kumara Swamy Ongera Gilbert B. S. Sherigara |
| author_facet | Umesh Chandra B. E. Kumara Swamy Ongera Gilbert B. S. Sherigara |
| author_sort | Umesh Chandra |
| collection | DOAJ |
| description | Poly (xylenol orange) film-coated graphite pencil electrode was fabricated for the detection of dopamine in the presence of ascorbic acid and uric acid in phosphate buffer solution of pH 7. The redox peaks obtained at modified electrode shows a good enhancement. The scan rate effect was found to be a diffusion-controlled electrode process. The electrochemical oxidation of dopamine was depended on pH, and the limit of detection was found to be 9.1 × 10−8 M. The simultaneous study gave and excellent result with great potential difference between dopamine and other bioactive organic molecules by using both cyclic voltammetric and differential pulse voltammetric techniques. The present modified graphite electrode was applied to the detection of dopamine in the injection samples, and the recovery obtained was satisfactory. |
| format | Article |
| id | doaj-art-8d004d4712d44e5b992dd521c9b93ac2 |
| institution | Kabale University |
| issn | 2090-3537 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Electrochemistry |
| spelling | doaj-art-8d004d4712d44e5b992dd521c9b93ac22025-02-03T01:06:57ZengWileyInternational Journal of Electrochemistry2090-35372011-01-01201110.4061/2011/512692512692Voltammetric Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid at Poly (Xylenol Orange) Film-Coated Graphite Pencil ElectrodeUmesh Chandra0B. E. Kumara Swamy1Ongera Gilbert2B. S. Sherigara3Department of P. G. Studies and Research in Industrial Chemistry, Jnana Sahyadri, Kuvempu University, Shankaraghatta-577 451, Shimoga, Karnataka (S), IndiaDepartment of P. G. Studies and Research in Industrial Chemistry, Jnana Sahyadri, Kuvempu University, Shankaraghatta-577 451, Shimoga, Karnataka (S), IndiaDepartment of P. G. Studies and Research in Industrial Chemistry, Jnana Sahyadri, Kuvempu University, Shankaraghatta-577 451, Shimoga, Karnataka (S), IndiaDepartment of P. G. Studies and Research in Industrial Chemistry, Jnana Sahyadri, Kuvempu University, Shankaraghatta-577 451, Shimoga, Karnataka (S), IndiaPoly (xylenol orange) film-coated graphite pencil electrode was fabricated for the detection of dopamine in the presence of ascorbic acid and uric acid in phosphate buffer solution of pH 7. The redox peaks obtained at modified electrode shows a good enhancement. The scan rate effect was found to be a diffusion-controlled electrode process. The electrochemical oxidation of dopamine was depended on pH, and the limit of detection was found to be 9.1 × 10−8 M. The simultaneous study gave and excellent result with great potential difference between dopamine and other bioactive organic molecules by using both cyclic voltammetric and differential pulse voltammetric techniques. The present modified graphite electrode was applied to the detection of dopamine in the injection samples, and the recovery obtained was satisfactory.http://dx.doi.org/10.4061/2011/512692 |
| spellingShingle | Umesh Chandra B. E. Kumara Swamy Ongera Gilbert B. S. Sherigara Voltammetric Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid at Poly (Xylenol Orange) Film-Coated Graphite Pencil Electrode International Journal of Electrochemistry |
| title | Voltammetric Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid at Poly (Xylenol Orange) Film-Coated Graphite Pencil Electrode |
| title_full | Voltammetric Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid at Poly (Xylenol Orange) Film-Coated Graphite Pencil Electrode |
| title_fullStr | Voltammetric Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid at Poly (Xylenol Orange) Film-Coated Graphite Pencil Electrode |
| title_full_unstemmed | Voltammetric Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid at Poly (Xylenol Orange) Film-Coated Graphite Pencil Electrode |
| title_short | Voltammetric Detection of Dopamine in Presence of Ascorbic Acid and Uric Acid at Poly (Xylenol Orange) Film-Coated Graphite Pencil Electrode |
| title_sort | voltammetric detection of dopamine in presence of ascorbic acid and uric acid at poly xylenol orange film coated graphite pencil electrode |
| url | http://dx.doi.org/10.4061/2011/512692 |
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