Electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solution
Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (Au/Cys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of...
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| Format: | Article |
| Language: | English |
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International Association of Physical Chemists (IAPC)
2018-05-01
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| Series: | Journal of Electrochemical Science and Engineering |
| Subjects: | |
| Online Access: | http://pub.iapchem.org/ojs/index.php/JESE/article/view/481 |
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| author | Jelena DuÅ¡an Lović Nemanja Trišović Jelena Antanasijević Milka Avramov Ivić |
| author_facet | Jelena DuÅ¡an Lović Nemanja Trišović Jelena Antanasijević Milka Avramov Ivić |
| author_sort | Jelena DuÅ¡an Lović |
| collection | DOAJ |
| description | Electrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (Au/Cys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10-3, 10-2, 0.1, 0.5, 1 μM and on Au/Cys in a range: 10-3, 10-2, 0.05, 0.1 μM. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC. |
| first_indexed | 2024-04-12T15:22:51Z |
| format | Article |
| id | doaj.art-751e7d3830954545bfa4ded53fb4870f |
| institution | Directory Open Access Journal |
| issn | 1847-9286 |
| language | English |
| last_indexed | 2024-04-12T15:22:51Z |
| publishDate | 2018-05-01 |
| publisher | International Association of Physical Chemists (IAPC) |
| record_format | Article |
| series | Journal of Electrochemical Science and Engineering |
| spelling | doaj.art-751e7d3830954545bfa4ded53fb4870f2022-12-22T03:27:22ZengInternational Association of Physical Chemists (IAPC)Journal of Electrochemical Science and Engineering1847-92862018-05-018210.5599/jese.481307Electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solutionJelena DuÅ¡an Lović0Nemanja Trišović1Jelena Antanasijević2Milka Avramov Ivić3ICTM, Department of Electrochemistry, University of Belgrade, NjegoÅ¡eva 12, 11000, BelgradeFaculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, BelgradeFaculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, BelgradeICTM, Department of Electrochemistry, University of Belgrade, NjegoÅ¡eva 12, 11000, BelgradeElectrochemical behavior of sildenafil citrate (SC) at gold and cystein (Cys) modified gold electrode (Au/Cys) in 0.1 M H2SO4 was investigated by cyclic voltammetry (CV) and by square wave voltammetry (SWV). Effect of scan rate on the CVs of SC standard was performed in order to examine the mode of transport and irreversibility of process. SC as standard is determined by SWV in acid solution at Au electrode in a range: 10-3, 10-2, 0.1, 0.5, 1 μM and on Au/Cys in a range: 10-3, 10-2, 0.05, 0.1 μM. The presence of Cys causes two-time larger peak currents and shifting of the incipient potential of the SC oxidation to 0.1 V in negative direction. In investigated range of concentration of SC standard in acid solution on modified and unmodified Au electrodes SWV method have excellent linear regression coefficient with value 0.997 promoting SWV for reliable determination of SC.http://pub.iapchem.org/ojs/index.php/JESE/article/view/481Sildenafil citrate standardcystein modified electrodesensitivityquantitative analysis |
| spellingShingle | Jelena DuÅ¡an Lović Nemanja Trišović Jelena Antanasijević Milka Avramov Ivić Electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solution Journal of Electrochemical Science and Engineering Sildenafil citrate standard cystein modified electrode sensitivity quantitative analysis |
| title | Electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solution |
| title_full | Electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solution |
| title_fullStr | Electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solution |
| title_full_unstemmed | Electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solution |
| title_short | Electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solution |
| title_sort | electrochemical behavior of sildenafil citrate at gold and cystein modified gold electrode in acid solution |
| topic | Sildenafil citrate standard cystein modified electrode sensitivity quantitative analysis |
| url | http://pub.iapchem.org/ojs/index.php/JESE/article/view/481 |
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