Title
Preconcentration of pharmaceuticals residues in sediment samples using microwave assisted micellar extraction coupled with solid phase extraction and their determination by HPLC-UV
Date Issued
15 February 2008
Access level
metadata only access
Resource Type
journal article
Author(s)
Sosa-Ferrera Z.
Torres-Padrón M.
Santana-Rodríguez J.
University of Las Palmas
Abstract
An analytical method combining microwave assisted micellar extraction (MAME) and solid phase extraction (SPE) has been developed to extract and preconcentrate a selected group of eight pharmaceutical compounds in sediment samples prior to their determination using liquid chromatography with an UV-DAD detector. A non-ionic surfactant, Polyoxyethylene 10 lauryl ether (POLE) was used for the MAME extraction and the different parameters for the optimization process were studied. Then, SPE was used to clean-up and preconcentrate the target analytes in the extract, prior to their determination using HPLC-UV. The method was applied to the determination of the selected pharmaceuticals compounds in several kinds of sediment samples with different characteristics. Relative recoveries for spiked sediment samples were over 70% and relative standard deviations (RSDs) were under 11% for all recoveries tested. Detection limits between 4 and 167 ng g-1 were obtained. The method was validated using Soxhlet extraction procedure. © 2008 Elsevier B.V. All rights reserved.
Start page
150
End page
157
Volume
863
Issue
1
Language
English
OCDE Knowledge area
Química analítica
Scopus EID
2-s2.0-39149093648
PubMed ID
Source
Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
ISSN of the container
15700232
Source funding
Ministerio de Ciencia e Innovación
Sponsor(s)
This work was supported by funds provided by the Ministry of Education and Science (Spain). Research project no. CT Q 2006-06507 and by the University Foundation of Las Palmas de Gran Canaria, Program INNOVA.
Sources of information: Directorio de Producción Científica Scopus