Oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrode
In the present paper, the use of a novel carbon paste electrode modified by 7,8-dihydroxy-3,3,6-trimethyl-3,4-dihydrodibenzo[b,d]furan-1(2H)-one (DTD) and oxidized multi-walled carbon nanotubes (OCNTs) is described for determination of levodopa (LD), acetaminophen (AC) and tryptophan (Trp) by a simp...
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| Format: | Article |
| Language: | English |
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Iranian Chemical Society
2016-01-01
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| Series: | Nanochemistry Research |
| Subjects: | |
| Online Access: | http://www.nanochemres.org/article_11642_dd0168d54331f7383411d47fd08af9e4.pdf |
| _version_ | 1819171504582033408 |
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| author | Mohammad Mazloum-Ardakani Abolfazl Naser-Sadrabadi Alireza Khoshroo |
| author_facet | Mohammad Mazloum-Ardakani Abolfazl Naser-Sadrabadi Alireza Khoshroo |
| author_sort | Mohammad Mazloum-Ardakani |
| collection | DOAJ |
| description | In the present paper, the use of a novel carbon paste electrode modified by 7,8-dihydroxy-3,3,6-trimethyl-3,4-dihydrodibenzo[b,d]furan-1(2H)-one (DTD) and oxidized multi-walled carbon nanotubes (OCNTs) is described for determination of levodopa (LD), acetaminophen (AC) and tryptophan (Trp) by a simple and rapid method. At first, the electrochemical behavior of DTD is studied, then, the mediated oxidation of LD at the modified electrode is investigated. At the optimum pH of 7.4, the oxidation of LD occurs at a potential about 330 mV less positive than that of an unmodified carbon paste electrode. Based on differential pulse voltammetry (DPV), the oxidation current of LD exhibits a linear range between 1.0 and 2000.0 μM of LD with a detection limit (3σ) of 0.36 μM. DPV was also used for simultaneous determination of LD, AC and Trp at the modified electrode. Finally, the proposed electrochemical sensor was used for determinations of these substances in human serum sample. |
| first_indexed | 2024-12-22T19:52:21Z |
| format | Article |
| id | doaj.art-98a2bb89813c4e1e98460d2e20de4704 |
| institution | Directory Open Access Journal |
| issn | 2538-4279 2423-818X |
| language | English |
| last_indexed | 2024-12-22T19:52:21Z |
| publishDate | 2016-01-01 |
| publisher | Iranian Chemical Society |
| record_format | Article |
| series | Nanochemistry Research |
| spelling | doaj.art-98a2bb89813c4e1e98460d2e20de47042022-12-21T18:14:31ZengIranian Chemical SocietyNanochemistry Research2538-42792423-818X2016-01-0111707810.7508/ncr.2016.01.00911642Oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrodeMohammad Mazloum-Ardakani0Abolfazl Naser-Sadrabadi1Alireza Khoshroo2Department of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, I.R. IranDepartment of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, I.R. IranDepartment of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, I.R. IranIn the present paper, the use of a novel carbon paste electrode modified by 7,8-dihydroxy-3,3,6-trimethyl-3,4-dihydrodibenzo[b,d]furan-1(2H)-one (DTD) and oxidized multi-walled carbon nanotubes (OCNTs) is described for determination of levodopa (LD), acetaminophen (AC) and tryptophan (Trp) by a simple and rapid method. At first, the electrochemical behavior of DTD is studied, then, the mediated oxidation of LD at the modified electrode is investigated. At the optimum pH of 7.4, the oxidation of LD occurs at a potential about 330 mV less positive than that of an unmodified carbon paste electrode. Based on differential pulse voltammetry (DPV), the oxidation current of LD exhibits a linear range between 1.0 and 2000.0 μM of LD with a detection limit (3σ) of 0.36 μM. DPV was also used for simultaneous determination of LD, AC and Trp at the modified electrode. Finally, the proposed electrochemical sensor was used for determinations of these substances in human serum sample.http://www.nanochemres.org/article_11642_dd0168d54331f7383411d47fd08af9e4.pdfacetaminophencarbon nanotubeelectrocatalysislevodopamodified carbon paste electrodetryptophan |
| spellingShingle | Mohammad Mazloum-Ardakani Abolfazl Naser-Sadrabadi Alireza Khoshroo Oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrode Nanochemistry Research acetaminophen carbon nanotube electrocatalysis levodopa modified carbon paste electrode tryptophan |
| title | Oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrode |
| title_full | Oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrode |
| title_fullStr | Oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrode |
| title_full_unstemmed | Oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrode |
| title_short | Oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrode |
| title_sort | oxidized multi walled carbon nanotubes for improving the electrocatalytic activity of a benzofuran derivative modified electrode |
| topic | acetaminophen carbon nanotube electrocatalysis levodopa modified carbon paste electrode tryptophan |
| url | http://www.nanochemres.org/article_11642_dd0168d54331f7383411d47fd08af9e4.pdf |
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