Electrochemical Oxidation of Paracetamol Mediated by MgB2 Microparticles Modified Glassy Carbon Electrode
A MgB2 microparticles modified glassy carbon electrode (MgB2/GCE) was fabricated by adhering microparticles of MgB2 onto the electrode surface of GCE. It was used as a working electrode for the detection of paracetamol in 0.1 M KH2PO4 aqueous solution during cyclic voltammetry. Use of the MgB2/GCE t...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2011/956864 |
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| author | Mohammed Zidan Tan Wee Tee A. Halim Abdullah Zulkarnain Zainal Goh Joo Kheng |
| author_facet | Mohammed Zidan Tan Wee Tee A. Halim Abdullah Zulkarnain Zainal Goh Joo Kheng |
| author_sort | Mohammed Zidan |
| collection | DOAJ |
| description | A MgB2 microparticles modified glassy carbon electrode (MgB2/GCE) was fabricated by adhering microparticles of MgB2 onto the electrode surface of GCE. It was used as a working electrode for the detection of paracetamol in 0.1 M KH2PO4 aqueous solution during cyclic voltammetry. Use of the MgB2/GCE the oxidation process of paracetamol with a current enhancement significantly by about 2.1 times. The detection limit of this modified electrode was found to be 30 μM. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, supporting electrolyte, temperature and scan rate. The current enhancement observed in different electrolytic media varied in the following order: KH2PO4 > KCl > K2SO4 > KBr. Interestingly, the oxidation of paracetamol using modified GC electrode remain constant even after 15 cycling. It is therefore evident that the MgB2 modified GC electrode possesses some degree of stability. A slope of 0.52 dependent of scan rate on current indicates that the system undergoes diffusion-controlled process. |
| format | Article |
| id | doaj-art-8b09eef8dff24d688df4936bccd7e688 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-8b09eef8dff24d688df4936bccd7e6882025-08-20T03:37:34ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-018255356010.1155/2011/956864Electrochemical Oxidation of Paracetamol Mediated by MgB2 Microparticles Modified Glassy Carbon ElectrodeMohammed Zidan0Tan Wee Tee1A. Halim Abdullah2Zulkarnain Zainal3Goh Joo Kheng4Department of Chemistry, Universiti Putra Malaysia 43400 UPM Serdang, Selangor, MalaysiaDepartment of Chemistry, Universiti Putra Malaysia 43400 UPM Serdang, Selangor, MalaysiaDepartment of Chemistry, Universiti Putra Malaysia 43400 UPM Serdang, Selangor, MalaysiaDepartment of Chemistry, Universiti Putra Malaysia 43400 UPM Serdang, Selangor, MalaysiaSchool of Science, Monash University Sunway Campus 46150 Bandar Sunway, Selangor, MalaysiaA MgB2 microparticles modified glassy carbon electrode (MgB2/GCE) was fabricated by adhering microparticles of MgB2 onto the electrode surface of GCE. It was used as a working electrode for the detection of paracetamol in 0.1 M KH2PO4 aqueous solution during cyclic voltammetry. Use of the MgB2/GCE the oxidation process of paracetamol with a current enhancement significantly by about 2.1 times. The detection limit of this modified electrode was found to be 30 μM. The sensitivity under conditions of cyclic voltammetry is significantly dependent on pH, supporting electrolyte, temperature and scan rate. The current enhancement observed in different electrolytic media varied in the following order: KH2PO4 > KCl > K2SO4 > KBr. Interestingly, the oxidation of paracetamol using modified GC electrode remain constant even after 15 cycling. It is therefore evident that the MgB2 modified GC electrode possesses some degree of stability. A slope of 0.52 dependent of scan rate on current indicates that the system undergoes diffusion-controlled process.http://dx.doi.org/10.1155/2011/956864 |
| spellingShingle | Mohammed Zidan Tan Wee Tee A. Halim Abdullah Zulkarnain Zainal Goh Joo Kheng Electrochemical Oxidation of Paracetamol Mediated by MgB2 Microparticles Modified Glassy Carbon Electrode E-Journal of Chemistry |
| title | Electrochemical Oxidation of Paracetamol Mediated by MgB2 Microparticles Modified Glassy Carbon Electrode |
| title_full | Electrochemical Oxidation of Paracetamol Mediated by MgB2 Microparticles Modified Glassy Carbon Electrode |
| title_fullStr | Electrochemical Oxidation of Paracetamol Mediated by MgB2 Microparticles Modified Glassy Carbon Electrode |
| title_full_unstemmed | Electrochemical Oxidation of Paracetamol Mediated by MgB2 Microparticles Modified Glassy Carbon Electrode |
| title_short | Electrochemical Oxidation of Paracetamol Mediated by MgB2 Microparticles Modified Glassy Carbon Electrode |
| title_sort | electrochemical oxidation of paracetamol mediated by mgb2 microparticles modified glassy carbon electrode |
| url | http://dx.doi.org/10.1155/2011/956864 |
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