Stability study of Iprodione in alkaline media in the presence of humic acids

The influence of humic aggregates in water solution upon the chemical stability of Iprodione has been investigated under basic conditions. Taking into account that an important part of soils are colloids, the possibility of its presence implies that soil composition and its structure will play an im...

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Detalles Bibliográficos
Autores: Morales, Jorge, Manso García, José Antonio, Cid, Antonio, Mejuto, Juan C.
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/38741
Acceso en línea:https://hdl.handle.net/10902/38741
Access Level:acceso abierto
Palabra clave:Iprodione
Humic acids
Hydrolysis
Colloids
Xenobiotic
Humic substances
Descripción
Sumario:The influence of humic aggregates in water solution upon the chemical stability of Iprodione has been investigated under basic conditions. Taking into account that an important part of soils are colloids, the possibility of its presence implies that soil composition and its structure will play an important role in the stability of this pesticide. A kinetic model was applied to this system and the kinetic coefficients were obtained. An inhibition upon the alkaline hydrolysis of Iprodione (2-fold) was observed and it was rationalized in terms of the micellar pseudophase model. These results have been compared with the corresponding ones in the same natural colloidal aggregates in the presence of other pesticides.