2026-04-30T05:15:40Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/307752025-02-18T13:38:31Zcom_10324_1186com_10324_931com_10324_894col_10324_1404
UVaDOC
author
Rodríguez Méndez, María Luz
author
Apetrei, Constantin
author
Saja Saez, José Antonio De
author
Apetrei, Irina Mirela
2018-07-17T09:46:16Z
2011
Sensors, 2011, vol. 11, n. 2. p. 1328-1344
1424-8220
http://uvadoc.uva.es/handle/10324/30775
10.3390/s110201328
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.
eng
Attribution-NonCommercial-NoDerivatives 4.0 International
Carbon paste electrodes made from different carbonaceous materials: application in the study of antioxidants
info:eu-repo/semantics/article
URL
https://uvadoc.uva.es/bitstream/10324/30775/1/Carbon-paste-electrodes.pdf
File
MD5
2b256004221ec82113a9625e40b47b5f
1027008
application/pdf
Carbon-paste-electrodes.pdf