title: Determination of steroid sex hormones in wastewater by stir bar sorptive extraction based on poly(vinylpyridine-ethylene dimethacrylate) monolithic material and liquid chromatographic analysis.
abstract: 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%.
authors.affiliation: State Key Laboratory of Marine Environmental Science, Environmental Science Research Center, Xiamen University, Xiamen, China. hxj@xmu.edu.cn
authors.forename: Xiaojia
authors.initials: X
authors.lastname: Huang
authors.forename: Jianbin
authors.initials: J
authors.lastname: Lin
authors.forename: Dongxing
authors.initials: D
authors.lastname: Yuan
authors.forename: Rongzong
authors.initials: R
authors.lastname: Hu
mesh_terms: D000327:Adsorption; D002851:Chromatography, High Pressure Liquid; D002853:Chromatography, Liquid / Q000379:methods*; D004777:Environment; D012739:Gonadal Steroid Hormones / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D008689:Methacrylates / Q000737:chemistry*; D009994:Osmolar Concentration; D011145:Polyvinyls / Q000737:chemistry*; D015203:Reproducibility of Results; D013997:Time Factors; D014865:Waste Disposal, Fluid
chemical_list: D012739:Gonadal Steroid Hormones; D008689:Methacrylates; D011145:Polyvinyls; C531083:poly(vinylpyridine-ethylene dimethacrylate)