|Title:||Development of a solid-phase microextraction method with micellar desorption for the determination of chlorophenols in water samples - Comparison with conventional solid-phase microextraction method||Authors:||Mahugo Santana,Cristina Isabel
Torres Padron, M. E.
Sosa Ferrera, Z.
Santana Rodríguez, José Juan
|UNESCO Clasification:||2301 química analítica
2391 Química ambiental
High-performance liquid chromatography
|Issue Date:||2007||Publisher:||0021-9673||Project:||Acoplamiento de la Microextracción en Fase Sólida y la Cromatografía Líquida de Alta Resolución Con la Utilización de Medios Micelares Como Extractantes: Desarrollo de Nuevos Métodos Analíticos||Journal:||Journal of Chromatography A||Abstract:||A novel analytical method is presented for the determination of chlorophenols in water. This method involves pre-concentration by solid-phase microextraction (SPME) and an external desorption using a micellar medium as desorbing agent. Final analysis of the selected chlorophenols compounds was carried out by high-performance liquid chromatography (HPLC) with diode array detection (DAD). Optimum conditions for desorption, using the non-ionic surfactant polyoxyethylene 10 lauryl ether (POLE), such as surfactant concentration and time were studied. A satisfactory reproducibility for the extraction of target compounds, between 6 and 15%, was obtained, and detection limits were in the range of 1.1–5.9 ng mL−1. The developed method is evaluated and compared with the conventional one using organic solvent as a desorbing agent. The method was successfully applied to the determination of chlorophenols in water samples from different origin. This study has demonstrated that solid-phase microextraction with micellar desorption (SPME-MD) can be used as an alternative to conventional SPME method for the extraction of chlorophenols in water samples.||URI:||http://hdl.handle.net/10553/47157||ISSN:||0021-9673||DOI:||10.1016/j.chroma.2006.11.050||Source:||Journal Of Chromatography A [ISSN 0021-9673], v. 1140 (1-2), p. 13-20|
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