Carbon Paste Electrodes Made from Different Carbonaceous Materials: Application in the Study of Antioxidants
This work describes the sensing properties of carbon paste electrodes (CPEs) prepared from three different types of carbonaceous materials: graphite, carbon microspheres and carbon nanotubes. The electrochemical responses towards antioxidants including vanillic acid, catechol, gallic acid, L-ascorbi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2011-01-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/11/2/1328/ |
| _version_ | 1811184582599376896 |
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| author | Constantin Apetrei Maria Luz Rodriguez-Mendez Jose Antonio De Saja Irina Mirela Apetrei |
| author_facet | Constantin Apetrei Maria Luz Rodriguez-Mendez Jose Antonio De Saja Irina Mirela Apetrei |
| author_sort | Constantin Apetrei |
| collection | DOAJ |
| description | This work describes the sensing properties of carbon paste electrodes (CPEs) prepared from three different types of carbonaceous materials: graphite, carbon microspheres and carbon nanotubes. The electrochemical responses towards antioxidants including vanillic acid, catechol, gallic acid, L-ascorbic acid and L-glutathione have been analyzed and compared. It has been demonstrated that the electrodes based on carbon microspheres show the best performances in terms of kinetics and stability, whereas G-CPEs presented the smallest detection limit for all the antioxidants analyzed. An array of electrodes has been constructed using the three types of electrodes. As demonstrated by means of Principal Component Analysis, the system is able to discriminate among antioxidants as a function of their chemical structure and reactivity. |
| first_indexed | 2024-04-11T13:15:53Z |
| format | Article |
| id | doaj.art-5dcbcc70e59d4257a8c8e93f2dadeeee |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T13:15:53Z |
| publishDate | 2011-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-5dcbcc70e59d4257a8c8e93f2dadeeee2022-12-22T04:22:25ZengMDPI AGSensors1424-82202011-01-011121328134410.3390/s110201328Carbon Paste Electrodes Made from Different Carbonaceous Materials: Application in the Study of AntioxidantsConstantin ApetreiMaria Luz Rodriguez-MendezJose Antonio De SajaIrina Mirela ApetreiThis work describes the sensing properties of carbon paste electrodes (CPEs) prepared from three different types of carbonaceous materials: graphite, carbon microspheres and carbon nanotubes. The electrochemical responses towards antioxidants including vanillic acid, catechol, gallic acid, L-ascorbic acid and L-glutathione have been analyzed and compared. It has been demonstrated that the electrodes based on carbon microspheres show the best performances in terms of kinetics and stability, whereas G-CPEs presented the smallest detection limit for all the antioxidants analyzed. An array of electrodes has been constructed using the three types of electrodes. As demonstrated by means of Principal Component Analysis, the system is able to discriminate among antioxidants as a function of their chemical structure and reactivity.http://www.mdpi.com/1424-8220/11/2/1328/carbon paste electrodecarbonaceous materialcarbon nanotubecyclic voltammetryantioxidant |
| spellingShingle | Constantin Apetrei Maria Luz Rodriguez-Mendez Jose Antonio De Saja Irina Mirela Apetrei Carbon Paste Electrodes Made from Different Carbonaceous Materials: Application in the Study of Antioxidants Sensors carbon paste electrode carbonaceous material carbon nanotube cyclic voltammetry antioxidant |
| title | Carbon Paste Electrodes Made from Different Carbonaceous Materials: Application in the Study of Antioxidants |
| title_full | Carbon Paste Electrodes Made from Different Carbonaceous Materials: Application in the Study of Antioxidants |
| title_fullStr | Carbon Paste Electrodes Made from Different Carbonaceous Materials: Application in the Study of Antioxidants |
| title_full_unstemmed | Carbon Paste Electrodes Made from Different Carbonaceous Materials: Application in the Study of Antioxidants |
| title_short | Carbon Paste Electrodes Made from Different Carbonaceous Materials: Application in the Study of Antioxidants |
| title_sort | carbon paste electrodes made from different carbonaceous materials application in the study of antioxidants |
| topic | carbon paste electrode carbonaceous material carbon nanotube cyclic voltammetry antioxidant |
| url | http://www.mdpi.com/1424-8220/11/2/1328/ |
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