Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1216, Issue 16, Pages 3508-3511Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2008.10.083
Keywords
Stir bar sorptive extraction; Monolithic material; HPLC/DAD; Endocrine disrupters; Steroid sex hormones; Wastewater
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In this study, a simple and rapid method was developed for the determination of seven steroid hormones in wastewater. Sample preparation and analysis were performed by stir bar sorptive extraction (SBSE) based on poly(vinylpyridine-ethylene dimethacrylate) monolithic material (SBSEM) combined with high-performance liquid chromatography with diode array detection. To achieve the optimum extraction performance, several main parameters, including extraction and desorption time, pH value and contents of inorganic salt in the sample matrix, were investigated. Under the optimized experimental conditions, the method showed good linearity and repeatability, as well as advantages such as sensitivity, simplicity, low cost and high feasibility. The extraction performance of SBSEM to the target compounds also compared with commercial SBSE which used polydimethylsiloxane as coating. Finally, the proposed method was successfully applied to the determination of the target compounds in wastewater samples. The recoveries of spiked target compounds in real samples ranged from 48.2% to 110%. (C) 2008 Elsevier B.V. All rights reserved.
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