Analysis of sulfamethoxazole by square wave voltammetry using new carbon paste electrode

In this work a new model of carbon paste electrode was employed to determine sulfamethoxazole (SMX), an antibiotic used to treat infections in human and veterinary medicine, by the square wave voltammetric modality (SWV). More specifically, the elec­trochemical behavior of SMX was investigated by cy...

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Published inJournal of electrochemical science and engineering
Main Authors Eleotério, Izabel Cristina, Balbino, Marco Aantonio, De Andrade, José Fernando, Ferreira, Bruno, Saczk, Adelir Aparecida, Okumura, Leonardo Luiz, Batista, Antonio Carlos Ferreira, De Oliveira, Marcelo Firmino
Format Journal Article
LanguageEnglish
Published 06.05.2018
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Summary:In this work a new model of carbon paste electrode was employed to determine sulfamethoxazole (SMX), an antibiotic used to treat infections in human and veterinary medicine, by the square wave voltammetric modality (SWV). More specifically, the elec­trochemical behavior of SMX was investigated by cyclic voltammetry (CV), and the quantitative analysis of SMX was provided by SWV. The analytical curve was obtained with a linear correlation coefficient (r) of 0.985 and standard deviation (SD) of 0.005 μA. Limits of detection and quantification were found as 2.3 × 10-6 and 7.7 × 10-6 mol L-1, respectively. According to the obtained results, the new carbon paste prototype electrode can successfully be employed in this kind of electroanalytical applications.
ISSN:1847-9286
1847-9286
DOI:10.5599/jese.509