Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/47158
Título: Optimisation of solid-phase microextraction coupled to HPLC-UV for the determination of organochlorine pesticides and their metabolites in environmental liquid samples
Autores/as: Torres Padrón, M. E. 
Sosa Ferrera, Z. 
Santana Rodríguez, J. J. 
Clasificación UNESCO: 2301 química analítica
2391 Química ambiental
Palabras clave: Solid-phase microextraction
Organochlorine pesticides
High-performance liquid chromatography
Water analysis
Fecha de publicación: 2006
Editor/a: 1618-2642
Publicación seriada: Analytical and Bioanalytical Chemistry 
Resumen: A solid-phase microextraction (SPME) procedure using two commercial fibers coupled with high-performance liquid chromatography (HPLC) is presented for the extraction and determination of organochlorine pesticides in water samples. We have evaluated the extraction efficiency of this kind of compound using two different fibers: 60-μm polydimethylsiloxane–divinylbenzene (PDMS-DVB) and Carbowax/TPR-100 (CW/TPR). Parameters involved in the extraction and desorption procedures (e.g. extraction time, ionic strength, extraction temperature, desorption and soaking time) were studied and optimized to achieve the maximum efficiency. Results indicate that both PDMS-DVB and CW/TPR fibers are suitable for the extraction of this type of compound, and a simple calibration curve method based on simple aqueous standards can be used. All the correlation coefficients were better than 0.9950, and the RSDs ranged from 7% to 13% for 60-μm PDMS-DVB fiber and from 3% to 10% for CW/TPR fiber. Optimized procedures were applied to the determination of a mixture of six organochlorine pesticides in environmental liquid samples (sea, sewage and ground waters), employing HPLC with UV-diode array detector.
URI: http://hdl.handle.net/10553/47158
ISSN: 1618-2642
DOI: 10.1007/s00216-006-0626-8
Fuente: Analytical and Bioanalytical Chemistry [ISSN 1618-2642], v. 386, p. 332-340
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