Simultaneous determination of multiresidue and multiclass emerging contaminants in waters by rotating-disk sorptive extraction–derivatization-gas chromatography/mass spectrometry

摘要: Abstract An efficient method has been developed for the multiresidue and multiclass determination of 16 emerging contaminants (parabens, hormones, anti-inflammatory drugs, triclosan bisphenol A) in water samples using rotating-disk sorptive extraction (RDSE) gas chromatography coupled to mass spectrometry (GC-MS). Silylation compounds prior GC-MS analysis was optimized a factorial experimental design; optimal derivatization conditions maximize response set analytes included 70 μL N-methyl-N-(trimethylsilyl)trifluoroacetamide at 80 °C 35 min. RDSE implemented Oasis® HLB as phase an time 60 min. The applied Chilean environmental samples. In tap water, none under study were detected. river well waters, concentrations four detected below 0.38 μg L−1. effluent influent wastewater treatment plant, maximum 3.1 4.2 μg L−1, respectively. proposed analytical strategy suggests clear improvements with respect other methods reported literature, considering not only different steps involved process (extraction, chromatography) but also taking into account that this involves families physicochemical structural properties.