Artículo
Environmental monitoring of phenolic pollutants in water by cloud point extraction prior to micellar electrokinetic chromatography
Stege, Patricia Wanda
; Sombra, Lorena Luján
; Messina, Germán Alejandro
; Martinez, Luis Dante
; Silva, María Fernanda
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Fecha de publicación:
05/2009
Editorial:
Springer Heidelberg
Revista:
Analytical and Bioanalytical Chemistry
ISSN:
1618-2642
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Many aromatic compounds can be found in the environment as a result of anthropogenic activities and some of them are highly toxic. The need to determine low concentrations of pollutants requires analytical methods with high sensitivity, selectivity, and resolution for application to soil, sediment, water, and other environmental samples. Complex sample preparation involving analyte isolation and enrichment is generally necessary before the final analysis. The present paper outlines a novel, simple, low-cost, and environmentally friendly method for the simultaneous determination of p-nitrophenol (PNP), p-aminophenol (PAP), and hydroquinone (HQ) by micellar electrokinetic capillary chromatography after preconcentration by cloud point extraction. Enrichment factors of 180 to 200 were achieved. The limits of detection of the analytes for the preconcentration of 50-ml sample volume were 0.10 μg L-1 for PNP, 0.20 μg L-1 for PAP, and 0.16 μg L-1 for HQ. The optimized procedure was applied to the determination of phenolic pollutants in natural waters from San Luis, Argentina.
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Identificadores
Colecciones
Articulos(IBAM)
Articulos de INST.DE BIOLOGIA AGRICOLA DE MENDOZA
Articulos de INST.DE BIOLOGIA AGRICOLA DE MENDOZA
Articulos(INQUISAL)
Articulos de INST. DE QUIMICA DE SAN LUIS
Articulos de INST. DE QUIMICA DE SAN LUIS
Citación
Stege, Patricia Wanda; Sombra, Lorena Luján; Messina, Germán Alejandro; Martinez, Luis Dante; Silva, María Fernanda; Environmental monitoring of phenolic pollutants in water by cloud point extraction prior to micellar electrokinetic chromatography; Springer Heidelberg; Analytical and Bioanalytical Chemistry; 394; 2; 5-2009; 567-573
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