Application of the new C sub(18) speedisks to the analysis of polychlorinated dibenzo-p-dioxins and dibenzofurans in water and effluent samples

A recently introduced disk for solid-phase extraction of pollutants from water (C sub(18) Speedisk) has been tested for the analysis of polychlorinated dibenzo-p-dioxins (PCDD) and dibenzofurans (PCDF). The complete procedure of analysis has been validated with spiked deionized water. The accuracy,...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2001-06, Vol.43 (4-7), p.449-454
Main Authors: Pujadas, E, Diaz-Ferrero, J, Marti, R, Broto-Puig, F, Comellas, L, Rodriguez-Larena, M C
Format: Article
Language:English
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Summary:A recently introduced disk for solid-phase extraction of pollutants from water (C sub(18) Speedisk) has been tested for the analysis of polychlorinated dibenzo-p-dioxins (PCDD) and dibenzofurans (PCDF). The complete procedure of analysis has been validated with spiked deionized water. The accuracy, expressed as recovery for the sum of 2,3,7,8-substituted congeners, is 92% and the precision, expressed as the RSD of reproducibility, is 5.8%. The limit of detection (LOD), using 2 1 of water, is 4.2 pg/l (0.6 pg ITEQ/l) for the sum of 2,3,7,8-substituted congeners. Actually, the C sub(18) Speedisks have substituted the use of other C sub(18) membrane disks in our laboratory because they allow the fast and efficient analysis of samples with high content of suspended material and reduce the time of elution of free-particulate samples. These disks have been successfully applied to the analysis of water from different sources and with very different physical and chemical characteristics: seawater, rain water, an industrial effluent, a landfill leachate and the inlet and chlorinated and non-chlorinated outlet water from a wastewater treatment plant.
ISSN:0045-6535