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https://repositorio.ufu.br/handle/123456789/24007| Tipo de documento: | Trabalho de Conclusão de Curso |
| Tipo de acceso: | Acesso Aberto |
| Título: | Polished silver solid amalgam electrodes in eletroanalytical determination of carbamates pesticides: The methomyl case. |
| Título (s) alternativo (s): | Polished silver solid amalgam electrode and cationic surfactant as tool in electroanalytical determination of methomyl pesticide. |
| Autor: | Silva, Caio César Gonçalves |
| Primer orientador: | Souza, Djenaine de |
| Resumen: | The polished silver solid amalgam electrode (p-AgSAE) combined with square wave voltammetry (SWV) was used in the development of an analytical procedure to Methomyl determination in natural water samples. The experimental and voltammetric parameters were optimized and the use of cationic surfactant cetyltrimethyl ammonium bromide promoted a considerable change in the kinetic and mechanism of the Methomyl reaction. Was observed the presence one-single reduction peak, related to a totally irreversible two-electrons transfer, followed by chemical reaction involving two protons. Analytical parameters (linearity range, analytical curve equations, correlation coefficient, detection and quantification limits, recovery efficiency, and relative standard deviation for intraday and interday experiments) were evaluated indicating that the proposed voltammetric procedure is suitable for determination of Methomyl. The application of the proposed procedure in natural water analysis indicated high robustness with only simple filtration, without pre-concentration steps, good stability and suitable sensitivity to determination of Methomyl in natural water samples. |
| Palabras clave: | Polished silver solid amalgam electrode Cationic surfactant Methomyl Endocrine disrupter Natural water samples Square wave voltammetry |
| Área (s) del CNPq: | CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA::QUIMICA ANALITICA::ELETROANALITICA |
| Idioma: | eng |
| País: | Brasil |
| Editora: | Universidade Federal de Uberlândia |
| Cita: | SILVA, Caio César Gonçalves. Polished silver solid amalgam electrode and cationic surfactant as a tool in the electroanalytical determination of methomyl pesticide. 2018. 8 f. (Graduation in Biotechnology) - Federal University of Uberlândia, Patos de Minas, 2018. |
| URI: | https://repositorio.ufu.br/handle/123456789/24007 |
| Fecha de defensa: | 13-dic-2017 |
| Aparece en las colecciones: | TCC - Biotecnologia (Patos de Minas) |
Ficheros en este ítem:
| Fichero | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| PolishedSilverSolid.pdf | 413.45 kB | Adobe PDF |  Visualizar/Abrir |
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