Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/42778
Title: Sample extraction method combining micellar extraction-SPME and HPLC for the determination of organochlorine pesticides in agricultural soils
Authors: Vega Moreno, D. 
Sosa Ferrera, Z. 
Santana Rodríguez, J. J. 
UNESCO Clasification: 2301 química analítica
Keywords: Organochlorine pesticides
Micellar medium
Extraction methods
Microwave
Solid-phase microextraction
Soils
High-performance liquid chromatography
Issue Date: 2006
Journal: Journal of Agricultural and Food Chemistry 
Abstract: A method for the determination of organochlorine pesticides in soil samples combining microwave assisted micellar extraction (MAME) with solid-phase microextraction (SPME) and high-performance liquid chromatography−UV has been developed. A mixture of two nonionic surfactants (polyoxyethylene 10 lauryl ether and polyoxyethylene 10 stearyl ether) was used for the extraction of pesticides from agricultural soils, and different types of SPME fibers were compared. The different parameters which affect extraction efficiency in the SPME procedure were optimized such as extraction time and temperature. The method developed involves extraction and preconcentration for the target analytes in soil samples. The analytical parameters were also studied and good recoveries obtained, RSD being lower than 10% and detection limits ranging between 36 and 164 ng g-1 for the pesticides studied. The proposed method was successfully applied to the determination of some organochlorine pesticides in several kinds of agricultural soil samples with different characteristics.
URI: http://hdl.handle.net/10553/42778
ISSN: 0021-8561
DOI: 10.1021/jf0614544
Source: Journal of Agricultural and Food Chemistry [ISSN 0021-8561], v. 54 (20), p. 7747-7752
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