A Molecularly Imprinted Polymer with Incorporated Graphene Oxide for Electrochemical Determination of Quercetin
The molecularly imprinted polymer based on polypyrrole film with incorporated graphene oxide was fabricated and used for electrochemical determination of quercetin. The electrochemical behavior of quercetin on the modified electrode was studied in detail using differential pulse voltammetry. The oxi...
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| Format: | Article |
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MDPI AG
2013-04-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/13/5/5493 |
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| author | Xiwen He Mengqi Zhang Yijun Li Si Sun |
| author_facet | Xiwen He Mengqi Zhang Yijun Li Si Sun |
| author_sort | Xiwen He |
| collection | DOAJ |
| description | The molecularly imprinted polymer based on polypyrrole film with incorporated graphene oxide was fabricated and used for electrochemical determination of quercetin. The electrochemical behavior of quercetin on the modified electrode was studied in detail using differential pulse voltammetry. The oxidation peak current of quercetin in B-R buffer solution (pH = 3.5) at the modified electrode was regressed with the concentration in the range from 6.0 × 10−7 to 1.5 × 10−5 mol/L (r2 = 0.997) with a detection limit of 4.8 × 10−8 mol/L (S/N = 3). This electrode showed good stability and reproducibility. In the above mentioned range, rutin or morin which has similar structures and at the same concentration as quercetin did not interfere with the determination of quercetin. The applicability of the method for complex matrix analysis was also evaluated. |
| first_indexed | 2024-04-11T20:49:44Z |
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| id | doaj.art-0875f05f2a72476686e2c950c907ce7d |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T20:49:44Z |
| publishDate | 2013-04-01 |
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| spelling | doaj.art-0875f05f2a72476686e2c950c907ce7d2022-12-22T04:03:52ZengMDPI AGSensors1424-82202013-04-011355493550610.3390/s130505493A Molecularly Imprinted Polymer with Incorporated Graphene Oxide for Electrochemical Determination of QuercetinXiwen HeMengqi ZhangYijun LiSi SunThe molecularly imprinted polymer based on polypyrrole film with incorporated graphene oxide was fabricated and used for electrochemical determination of quercetin. The electrochemical behavior of quercetin on the modified electrode was studied in detail using differential pulse voltammetry. The oxidation peak current of quercetin in B-R buffer solution (pH = 3.5) at the modified electrode was regressed with the concentration in the range from 6.0 × 10−7 to 1.5 × 10−5 mol/L (r2 = 0.997) with a detection limit of 4.8 × 10−8 mol/L (S/N = 3). This electrode showed good stability and reproducibility. In the above mentioned range, rutin or morin which has similar structures and at the same concentration as quercetin did not interfere with the determination of quercetin. The applicability of the method for complex matrix analysis was also evaluated.http://www.mdpi.com/1424-8220/13/5/5493molecularly imprinted polymergraphene oxidequercetinmodified electrode |
| spellingShingle | Xiwen He Mengqi Zhang Yijun Li Si Sun A Molecularly Imprinted Polymer with Incorporated Graphene Oxide for Electrochemical Determination of Quercetin Sensors molecularly imprinted polymer graphene oxide quercetin modified electrode |
| title | A Molecularly Imprinted Polymer with Incorporated Graphene Oxide for Electrochemical Determination of Quercetin |
| title_full | A Molecularly Imprinted Polymer with Incorporated Graphene Oxide for Electrochemical Determination of Quercetin |
| title_fullStr | A Molecularly Imprinted Polymer with Incorporated Graphene Oxide for Electrochemical Determination of Quercetin |
| title_full_unstemmed | A Molecularly Imprinted Polymer with Incorporated Graphene Oxide for Electrochemical Determination of Quercetin |
| title_short | A Molecularly Imprinted Polymer with Incorporated Graphene Oxide for Electrochemical Determination of Quercetin |
| title_sort | molecularly imprinted polymer with incorporated graphene oxide for electrochemical determination of quercetin |
| topic | molecularly imprinted polymer graphene oxide quercetin modified electrode |
| url | http://www.mdpi.com/1424-8220/13/5/5493 |
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