water analysis;
solid-phase microextraction;
phenolic compounds;
D O I:
10.1016/S0021-9673(01)00975-X
中图分类号:
Q5 [生物化学];
学科分类号:
071010 ;
081704 ;
摘要:
Solid-phase microextraction (SPME) coupled to high-performance liquid chromatography (HPLC) has been applied to the analysis of priority pollutant phenolic compounds in water samples. Two types of polar fibers [50 mum Carbowax-templated resin (CW-TPR) and 60 mum polydimethylsiloxane-divinylbenzene (PDMS-DVB)] were evaluated. The effects of equilibration time and ionic strength of samples on the adsorption step were studied. The parameters affecting the desorption process, such as desorption mode, solvent composition and desorption time, were optimized. The developed method was used to determine the phenols in spiked river water samples collected in the Douro River, Portugal. Detection limits of 1-10 mug l(-1) were achieved under the optimized conditions. (C) 2001 Elsevier Science B.V. All rights reserved.