| Revista: | Quimica nova |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000313228 |
| ISSN: | 0100-4042 |
| Autores: | Souza, Tomaz Alves de1 Matta, Marcia Helena de Rizzo da Montagner, Emerson Abreu, Adley Bergson Goncalves de |
| Instituciones: | 1Universidade Federal de Mato Grosso do Sul, Centro de Ciencias Exatas e Tecnologia, Campo Grande, Mato Grosso do Sul. Brasil |
| Año: | 2006 |
| Periodo: | Nov |
| Volumen: | 29 |
| Número: | 6 |
| Paginación: | 1372-1376 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | In the present paper we studied the recoveries of glyphosate, N-(phosphonomethyl)glycine (GLY) and its major metabolite, (aminomethyl)phosphonic acid (AMPA) in soil using national (Brazilian) ion-exchange resins, derivatization by a mixture of trifluoroacetic anhydride and trifluoroethanol and analyses by GC-MS. The quantification limits were 12 ng.g-1 for both compounds and the methodology showed a range of recuperation from 85 to 94% with coefficients of variation (CV) ranging from 4.07 to 6.91% for GLY. For AMPA, the mean recoveries ranged from 87 to 102% with CVs ranging from 5.81 to 6.99%. Additional studies showed that, due to the instability of the derivatized compounds, they must be analysed keeping constant time between derivatization and analysis, preferably less than 24 h |
| Disciplinas: | Química, Agrociencias |
| Palabras clave: | Suelos, Contaminación del suelo, Herbicidas, Remediación, Química ambiental, Glifosato, Acido aminometil fosfónico |
| Keyword: | Chemistry, Agricultural sciences, Soils, Soil pollution, Herbicides, Remediation, Environmental chemistry, Glyphosate, Aminomethyl phosphonic acid |
| Texto completo: | Texto completo (Ver HTML) |
