Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/42780
Título: Use of polyoxyethylene surfactants for the extraction of organochlorine pesticides from agricultural soils
Autores/as: Vega Moreno, Daura 
Sosa-Ferrera, Zoraida 
Santana Rodríguez, José Juan 
Clasificación UNESCO: 2301 química analítica
Palabras clave: Organochlorine pesticides
Micellar medium
Extraction methods
Microwave
Soils, et al.
Fecha de publicación: 2006
Publicación seriada: Journal of Chromatography A 
Resumen: Two non-ionic surfactant mixtures (POLE and Polyoxyethylene 10 Cetyl ether, POLE and Polyoxyethylene 10 Stearyl ether) have been used for microwave-assisted extraction of six organochlorine pesticides from agricultural soils prior to being determined by HPLC-UV. An experimental design was applied for the determination of variables which affect to recovery and to optimize the extraction parameters, surfactant concentration and volume, microwave time and power. Under the optimized conditions, the method was applied to different soil samples in order to analyze the influence of soil characteristics on the pesticides extraction. The results obtained indicate that most of these compounds can be recovered in good yields with RSD lower than 10% and detection limit ranged between 80 and 800 ng g−1 for the pesticides studied. The proposed method was applied to a reference soil sample and to aged soils.
URI: http://hdl.handle.net/10553/42780
ISSN: 0021-9673
DOI: 10.1016/j.chroma.2005.11.093
Fuente: Journal of Chromatography A [ISSN 0021-9673], v. 1104 (1-2), p. 11-17
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