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- Title
Electrodetermination of Gallic Acid Using Multi‐walled Carbon Nanotube Paste Electrodes and N‐Octylpyridinium Hexafluorophosphate.
- Authors
Gidi, Leyla; Honores, Jessica; Ibarra, José; Jesús Aguirre, María; Arce, Roxana; Ramírez, Galo
- Abstract
In this work, the determination of gallic acid was performed using surface‐renewable carbon paste electrodes fabricated with multi‐walled carbon nanotubes (MWCNT) and a mixture of N‐octylpyridinium hexafluorophosphate (OPyPF6) ionic liquid with mineral oil (MO) as binder. This system shows remarkable amperometric sensor characteristics and promotes a better electronic transfer. An electroanalytical study of gallic acid shows a linear range from 4.98±0.25 to 74.1±2.2 μmol L−1, with R2=0.9958 and an experiment a limit of detection of 2.70±0.08 μmol L−1 (S/N=3), and a sensitivity of 0.029 μA μmol−1 L.
- Subjects
GALLIC acid; CARBON nanotubes; MULTIWALLED carbon nanotubes; AMPEROMETRIC sensors; MINERAL oils; CARBON electrodes
- Publication
Electroanalysis, 2022, Vol 34, Issue 7, p1163
- ISSN
1040-0397
- Publication type
Article
- DOI
10.1002/elan.202100476