Document Type : Original Paper
Authors
1 Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
2 Department of Chemistry and Biochemistry, University of Delaware, Newark, United States
Abstract
In this work, we successfully developed electromembrane extraction via preparation of an electrospun flat membrane based on device. The polyurethane-membrane was prepared by electrospinning method and used in EME. Affecting parameters on membrane preparation were optimized by Taguchi design. The developed method was used for extraction of phthalates as typical molecules and the proposed method was used to determine phthalates in water samples. The applied voltage, extraction time, distance of electrodes and agitation rate were selected as the main factors in EME and optimized using response surface methodology based on a central composite design. Under optimum conditions, calibration curves were obtained in the range of 0.5-5000 ng mL-1 with R2>0.990. The repeatabilities were less than 12% and 14% for intra-day and inter-day, respectively. The limits of detection were found to be 0.03 and 0.02 ng mL-1 and limits of quantification were obtained 0.09 and 0.06 for bis (2- ethylhexyl phthalate), and dimethyl phthalate, respectively.
Keywords
Main Subjects
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