2023-08-172023-08-172018MACEDO, Isaac Yves Lopes de et al. Differential pulse voltammetric determination of piroxicam on lanthanide ferric oxide nanoparticles-carbon paste modified electrode. Current Pharmaceutical Analysis, [s. l.], v. 13, n. 3, p. 271-276, 2018. DOI: 10.2174/1573412913666170410131223. Disponível em: https://www.eurekaselect.com/article/82735. Acesso em: 23 jun. 2023.1573-4129e- 1875-676Xhttps://www.eurekaselect.com/article/82735Introduction: Piroxicam (PRX) is a widely consumed anti-inflammatory drug, and the assays of its tablets and gels for quality control are mostly performed through High Performance Liquid Chromatography with Ultraviolet Detector (HPLC-UV). Methods: In this regard, an alternate approach, LaFeO3 nanoparticles-modified carbon paste electrode was prepared in order to carry out PRX analysis by using voltammetric approaches. Results: The modified electrode showed better analytical signal. The calibration curve is in the concentration range of 9.00 and 180.00 µmol·L-1 and the limit of detection was obtained as 1.00 µmol·L1 for PRX. The calculated recovery rate was fairly good (99.14%) in comparison with the declared value in the commercial product. Conclusion: As shown by the low overall process cost, performance quickness and analytical results, the proposed method of electroanalysis with the LaFeO3 nanoparticles-modified carbon paste electrode presents a viable and interesting alternative approach to identification and determination of PRX compound in commercial products.engAcesso RestritoLaFeO3NanoparticlesModified carbon paste electrodeElectroanalysisVoltammetryPiroxicamOxidationArtigo10.2174/1573412913666170410131223