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)
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
Subjects
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