Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin
The potential capabilities and analytical performance of lab-on-valve (LOV) manifold as a front end to amperometry have been explored for the on-line determination of morin. Meanwhile, the electrochemical behaviors of morin were investigated based on polyvinylpyrrolidone- (PVP-) doped carbon paste e...
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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/10.1155/2012/257109 |
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| author | Yang Wang Guojun Yao Jie Tang Chun Yang Qin Xu Xiaoya Hu |
| author_facet | Yang Wang Guojun Yao Jie Tang Chun Yang Qin Xu Xiaoya Hu |
| author_sort | Yang Wang |
| collection | DOAJ |
| description | The potential capabilities and analytical performance of lab-on-valve (LOV) manifold as a front end to amperometry have been explored for the on-line determination of morin. Meanwhile, the electrochemical behaviors of morin were investigated based on polyvinylpyrrolidone- (PVP-) doped carbon paste electrode (CPE), which found that PVP can significantly improve its oxidation peak current. The excellent amperometric current response was achieved when the potential difference (ΔE) of 0.6 V was implemented in pH 6.5 phosphate buffer solution (PBS) that served as the supporting electrolyte. A well-defined oxidation peak has been obtained in studies using PVP as a modifier of CPE based on the oxidation of morin. The present work introduces the LOV technique as a useful tool for amperometric measurement, documents advantages of using programmable flow, and outlines means for miniaturization of assays on the basis of PVP modified CPE. The proposed method was applied successfully to the determination of morin in real samples, and the spiked recoveries were satisfactory. |
| format | Article |
| id | doaj-art-43a1c8549b8741219baf6e64ebb7446e |
| 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-43a1c8549b8741219baf6e64ebb7446e2025-02-03T01:24:19ZengWileyJournal of Analytical Methods in Chemistry2090-88652090-88732012-01-01201210.1155/2012/257109257109Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of MorinYang Wang0Guojun Yao1Jie Tang2Chun Yang3Qin Xu4Xiaoya Hu5College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, ChinaCollege of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, ChinaCollege of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, ChinaCollege of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, ChinaCollege of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, ChinaCollege of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, ChinaThe potential capabilities and analytical performance of lab-on-valve (LOV) manifold as a front end to amperometry have been explored for the on-line determination of morin. Meanwhile, the electrochemical behaviors of morin were investigated based on polyvinylpyrrolidone- (PVP-) doped carbon paste electrode (CPE), which found that PVP can significantly improve its oxidation peak current. The excellent amperometric current response was achieved when the potential difference (ΔE) of 0.6 V was implemented in pH 6.5 phosphate buffer solution (PBS) that served as the supporting electrolyte. A well-defined oxidation peak has been obtained in studies using PVP as a modifier of CPE based on the oxidation of morin. The present work introduces the LOV technique as a useful tool for amperometric measurement, documents advantages of using programmable flow, and outlines means for miniaturization of assays on the basis of PVP modified CPE. The proposed method was applied successfully to the determination of morin in real samples, and the spiked recoveries were satisfactory.http://dx.doi.org/10.1155/2012/257109 |
| spellingShingle | Yang Wang Guojun Yao Jie Tang Chun Yang Qin Xu Xiaoya Hu Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin Journal of Analytical Methods in Chemistry |
| title | Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin |
| title_full | Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin |
| title_fullStr | Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin |
| title_full_unstemmed | Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin |
| title_short | Online Coupling of Lab-on-Valve Format to Amperometry Based on Polyvinylpyrrolidone-Doped Carbon Paste Electrode and Its Application to the Analysis of Morin |
| title_sort | online coupling of lab on valve format to amperometry based on polyvinylpyrrolidone doped carbon paste electrode and its application to the analysis of morin |
| url | http://dx.doi.org/10.1155/2012/257109 |
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