Piroxicam voltammetric determination by ultra low cost pencil graphite electrode
Braz. J. Pharm. Sci. (Online)
; 56: e17344, 2020. tab, graf
Article
em En
|
LILACS-Express
| LILACS
| ID: biblio-1089212
Biblioteca responsável:
BR1.1
ABSTRACT
Piroxicam (PRX) was determined in pharmaceutical capsules with differential pulse voltammetry (DPV) in a three electrode system consisting of a pencil graphite electrode (PGE) as working electrode, a Pt wire and a reference electrode of Ag/AgCl/KCl 3 M. An irreversible oxidation peak was observed in Epa c.a. 0.6 V, which correlates to the oxidation of PRX. The coefficient of linear correlation obtained was 0.9946, with limit of detection of 2.1 µM and limit of quantification of 4.7 µM. PGE assays showed good analytical performance compared to high performance liquid chromatography and spectrophotometry, showing the potential to be further developed and employed in quick and simple analyses.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Tipo de estudo:
Health_economic_evaluation
Idioma:
En
Revista:
Braz. J. Pharm. Sci. (Online)
Assunto da revista:
Farmacologia
/
Teraputica
/
Toxicologia
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil