Title: Flat membrane-based electromembrane extraction coupled with UV–visible spectrophotometry for the determination of diethylhexyl phthalate in water samples
Journal: Microchemical Journal
Author: 1. Afsaneh Mollahosseini, Yousef Elyasi, 2. Mohammad Rastegari
Year: 2019
Address: 1. Research Laboratory of Spectroscopy & Micro and Nano Extraction, Department of Chemistry, Iran University of Science and Technology, Tehran, Iran 2. Environmental Research Laboratory, School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran
Abstract: A polyacrylonitrile (PAN)/polydimethylsiloxane (PDMS) membrane supported with an appropriate quantity of titanium dioxide (TiO2) nanoparticles was electrospun. The membrane was used in a two-phase electromembrane extraction (EME) setup for extracting diethylhexyl phthalate (DEHP) from aqueous samples. Some effective parameters on the extraction efciency including applied voltage, agitation rate, and extraction time were optimized by the central composite design (CCD) method; the others including the donor pH, acceptor volume and type were optimized using the ‘one variable at a time’ method. The target analyte, DEHP, was detected by ultraviolet–visible (UV–Vis) spectrophotometry. The coefcient of determination (R2), relative standard deviation (RSD), limit of detection (LOD) and limit of quantifcation (LOQ) in the concentration range of 20–1000 ng mL−1 were 0.9944, < 8%, 5 ng mL−1 and 16.67 ng mL−1, respectively. The relative recoveries (RRs) of DEHP in some real samples including saline serum and boiled water by electric plastic kettle were over 97%. The extraction of DEHP from 10 mL of water totally consumed 0.33 Wh of electric energy.
Keywords: Electromembrane extraction, Flat membrane, Phthalates, Central composite design, UV–visible spectrophotometry
Application: Extraction, Membrane
Product Model 1: Polymer for Electrospinning
Product Model 2:
URL: #https://www.sciencedirect.com/science/article/abs/pii/S0026265X19302711#