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http://hdl.handle.net/1843/48848| Tipo: | Artigo de Periódico |
| Título: | Optimization and validation of LLE-LTP and QuEChERS Methodologies for determining 2,4-D in water samples |
| Autor(es): | Lucas Victor Pereira de Freitas Lázaro Chaves Sicupira Gevany Paulino de Pinho Flaviano Oliveira Silvério |
| Resumen: | 2,4-Dichlorophenoxyacetic acid (2,4-D) has been one of the main herbicides used to control weeds, however, due to its high use it can promote episodes of environmental contamination. Therefore, this study aimed to optimize and validate the liquid-liquid extraction with low-temperature partition (LLE-LTP) and the quick, easy, cheap, effective, rugged, and safe (QuEChERS) methods for determining 2,4-D in water samples by high performance liquid chromatography with diode array detector. The recovery percentages of the two methodologies were close to 100 ± 3%, and the limits of quantification were 2.0 and 3.1 µg L-1 for LLE-LTP and QuEChERS, respectively. The methodologies were selective and presented linearity from 2.0-26.0 and 3.1-40.6 µg L-1 for LLE-LTP and QuEChERS, respectively. The LLE-LTP was better than QuEChERS due to a smaller number of steps, lower reagent consumption, higher concentration factor and a lower limit of quantification. The real samples did not reveal any environmental contamination episodes by 2,4-D. |
| Asunto: | Herbicidas Resíduos herbicidas Produtos químicos agrícolas |
| Idioma: | eng |
| País: | Brasil |
| Editor: | Universidade Federal de Minas Gerais |
| Sigla da Institución: | UFMG |
| Departamento: | ICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS |
| Tipo de acceso: | Acesso Aberto |
| Identificador DOI: | https://doi.org/10.21577/0103-5053.20200086 |
| URI: | http://hdl.handle.net/1843/48848 |
| Fecha del documento: | sep-2020 |
| metadata.dc.url.externa: | https://www.scielo.br/j/jbchs/a/LypXFNcsfQX9MpJ8yzDf4Xr/abstract/?lang=en |
| metadata.dc.relation.ispartof: | Journal of the Brazilian Chemical Society |
| Aparece en las colecciones: | Artigo de Periódico |
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| archivo | Descripción | Tamaño | Formato | |
|---|---|---|---|---|
| Optimization and Validation of LLE-LTP and QuEChERS Methodologies for Determining 2,4-D in Water Samples.pdf | 236.62 kB | Adobe PDF | Visualizar/Abrir |
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