Carbon nanotubes modified with antimony nanoparticles in a paraffin composite electrode: Simultaneous determination of sulfamethoxazole and trimethoprim

Autor(es)

Cesarino, Ivana ^[1] ; Cesarino, Vivian ^[2] ; Lanza, Marcos R. V. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil

^[2] Univ Sao Paulo, Escola Engn Sao Carlos, BR-13560970 Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SENSORS AND ACTUATORS B-CHEMICAL; v. 188, p. 1293-1299, NOV 2013.
• Citações Web of Science: 32

Resumo

A new sensor has been developed for the simultaneous detection of sulfamethoxazole (SMX) and trimethoprim (TMP) using differential pulse voltammetry at a paraffin composite electrode based on multi-walled carbon nanotubes (MWCNT) modified with antimony nanoparticles (SbNPs). The morphology of the MWCNT-SbNPs nanocomposite and the electrochemical performance of the compositeelectrode were characterised by field emission gun scanning electron microscopy and cyclic voltammetry, respectively. The synergistic effect of the carbon nanotubes and the SbNPs yielded LOD of 24 nmol L-1 (6.1 mu g L-1) for SMX and 31 nmol L-1(9.0 mu g L-1) for TMP. Additionally, the simultaneous determination of SMX and TMP in natural water was achieved. (C) 2013 Elsevier B. V. All rights reserved. (AU)

• Processo FAPESP: 12/19633-0 - Dispositivo Eletroquímico Integrado com Nanotubos de Carbono e Nanopartículas Metálicas para Análise de Antibióticos em Efluentes
• Beneficiário: Ivana Cesarino
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado