Voltammetric Determination of Trimethoprim Using a Glassy Carbon Electrode Modified with Printex(6L) Carbon and Gold Nanoparticles (2023)
- Authors:
- Autor USP: ROCHA, ROBSON DA SILVA - EEL
- Unidade: EEL
- DOI: 10.3390/analytica4020013
- Subjects: ANTIBIÓTICOS; NANOPARTÍCULAS; gold nanoparticles; Printex carbon; trimethoprim; voltammetric sensor; antibiotic; emerging contaminants
- Agências de fomento:
- Language: Inglês
- Abstract: This work proposes a simple, fast and low-cost voltammetric method for the determination of trimethoprim at low concentrations in an analytical and real matrix (river water sample, bovine serum and synthetic urine). For this, a glassy carbon electrode was modified with Printex(6L) carbon and gold nanoparticles in a chitosan film crosslinked with epichlorohydrin. After that, the electrochemical measurement system contained a solution of phosphate buffer at pH 4.0 with commands for the square wave voltammetry technique. The results achieved showed a limit of detection equal to 12.4 nmol L−1 and a linear concentration range from 0.20 to 6.0 μmol L−1. The sensor selectivity was tested in the presence of various electroactive molecules, and the results showed that the detection of TMP in the presence of possible interferents was not masked. In addition, the applicability of the AuNPs–Printex(6L)–CTS:EPH/GCE sensor was also verified in synthetic samples of urine, bovine serum and river water through standard addition and recovery tests. Finally, the results of this analytical proposal portray a simple, fast and efficient method for the detection of TMP in different matrices.
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- Cor do Acesso Aberto: gold
- Licença: cc-by
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ABNT
FEITOSA, Maria H. A. et al. Voltammetric Determination of Trimethoprim Using a Glassy Carbon Electrode Modified with Printex(6L) Carbon and Gold Nanoparticles. Analytica, v. 4, n. 2, p. 159-169, 2023Tradução . . Disponível em: https://doi.org/10.3390/analytica4020013. Acesso em: 07 abr. 2025. -
APA
Feitosa, M. H. A., Santos, A. M. dos, Wong, A., Rocha, R. S., & Moraes, F. C. (2023). Voltammetric Determination of Trimethoprim Using a Glassy Carbon Electrode Modified with Printex(6L) Carbon and Gold Nanoparticles. Analytica, 4( 2), 159-169. doi:10.3390/analytica4020013 -
NLM
Feitosa MHA, Santos AM dos, Wong A, Rocha RS, Moraes FC. Voltammetric Determination of Trimethoprim Using a Glassy Carbon Electrode Modified with Printex(6L) Carbon and Gold Nanoparticles [Internet]. Analytica. 2023 ; 4( 2): 159-169.[citado 2025 abr. 07 ] Available from: https://doi.org/10.3390/analytica4020013 -
Vancouver
Feitosa MHA, Santos AM dos, Wong A, Rocha RS, Moraes FC. Voltammetric Determination of Trimethoprim Using a Glassy Carbon Electrode Modified with Printex(6L) Carbon and Gold Nanoparticles [Internet]. Analytica. 2023 ; 4( 2): 159-169.[citado 2025 abr. 07 ] Available from: https://doi.org/10.3390/analytica4020013 - FOTODEGRADAÇÃO DE 4-CLOROFENOL UTILIZANDO CATALISADOR COMPÓSITO DE ZnO/XEROGEL DE CARBONO PRODUZIDO POR ROTA DE SÍNTESE ÁCIDA
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Informações sobre o DOI: 10.3390/analytica4020013 (Fonte: oaDOI API)
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