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http://hdl.handle.net/10553/47169
| Título: | Extraction and preconcentration of polychlorinated dibenzo-p-dioxins using the cloud-point methodology - Application to their determination in water samples by high-performance liquid chromatography | Autores/as: | Padrón Sanz, C. Sosa Ferrera, Z. Santana Rodríguez, J. J. |
Clasificación UNESCO: | 2301 química analítica 230331 Química del agua 2391 Química ambiental |
Palabras clave: | Cloud-point extraction Liquid chromatography Polychlorinated dibenzo-p-dioxins Fresh water Brackish water, et al. |
Fecha de publicación: | 2002 | Editor/a: | 0003-2670 | Publicación seriada: | Analytica chimica acta (Print) | Resumen: | A new analytical method based on the cloud-point extraction (CPE) methodology combined with high-performance liquid chromatography is used in this study for the extraction and quantification of polychlorinated dibenzo-p-dioxins. These compounds are extracted by using the non-ionic surfactant polyoxyethylene 10 lauryl ether (POLE) from different aqueous systems: fresh, brackish and sea waters. After the cloud-point extraction, which also allowed a preconcentration of the PCDDs being studied, the samples were analysed using a HPLC–UV system under the optimum chromatographic conditions. The proposed method showed very satisfactory recovery percentages for the PCDDs under study and standard deviation values lower than 2%. The results obtained were finally compared with those found using the traditional liquid–liquid extraction method. | URI: | http://hdl.handle.net/10553/47169 | ISSN: | 0003-2670 | DOI: | 10.1016/S0003-2670(02)00762-6 | Fuente: | Analytica Chimica Acta [ISSN 0003-2670], v. 470, p. 205-214 |
| Colección: | Artículos |
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