Application of tandem dispersive liquid–liquid microextraction for the determination of doxepin, citalopram, and fluvoxamine in complicated samples
作者： Bahareh Fahimirad , Alireza Asghari , Mohammad Bazregar , Maryam Rajabi , Ebrahim Fahimi
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摘要: A new type of dispersive liquid-liquid microextraction is used for the determination doxepin, citalopram, and fluvoxamine in aqueous matrices. This method based upon tandem utilization microextraction, by providing a high sample clean-up, it efficiently improves applicability complicated For this purpose, first step, analytes contained an solution (8.0 mL) were extracted into organic solvent, then these simply back-extracted acceptor phase (50 μL). The overall extraction time was 7 min, very simple tools required aim. Optimization variables affecting such as volume solvent effect ionic strength carried out to achieve best efficiency. Under optimized experimental conditions, with high-performance liquid chromatography UV detection showed good linearity range 10-5000 ng/mL. limits 3-10 Intra-day precisions (relative standard deviation) 9.2, 4.5, 4.8, recoveries 58.5, 52.9, 39.3% fluvoxamine, respectively.
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