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

Autor(es)

Eleoterio, Izabel C. ^[1] ; Balbino, Marco A. ^[1] ; de Andrade, Jose F. ^[1] ; Ferreira, Bruno ^[1] ; Saczk, Adelir A. ^[2] ; Okumura, Leonardo L. ^[3] ; Batista, Antonio Carlos F. ^[4] ; de Oliveira, Marcelo F. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Quim, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Ribeirao Preto, SP - Brazil

^[2] Univ Fed Lavras, Dept Quim, BR-37200000 Lavras, MG - Brazil

^[3] Univ Fed Vicosa, Dept Quim, BR-36570000 Vicosa, MG - Brazil

^[4] Univ Fed Uberlandia, Campus Pontal, BR-38304402 Ituiutaba, MG - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF ELECTROCHEMICAL SCIENCE AND ENGINEERING; v. 8, n. 4, p. 281-289, 2018.
• Citações Web of Science: 1

Resumo

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 mu A. Limits of detection and quantification were found as 2.3x10(-6) and 7.7x10(-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. (AU)

• Processo FAPESP: 16/23825-3 - Desenvolvimento de sensores voltamétricos para determinação de cocaína e delta-9-tetraidrocanabinol em amostras apreendidas pela polícia
• Beneficiário: Marcelo Firmino de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 11/10216-5 - Desenvolvimento de sensores voltamétricos para monitoramento ambiental de fármacos:oxitetraciclina, doxiciclina, trimetoprim e sulfametoxazol
• Beneficiário: Izabel Cristina Eleotério
• Modalidade de apoio: Bolsas no Brasil - Doutorado