پديدآورندگان :
Sobhi Hamid Reza - Payame Noor University, Tehran, Iran , Ghambarian Mahnaz ghambarian.m@gmail.com Iranian Research and Development Center for Chemical Industries, ACECR, Tehran, Iran; , Behbahani Mohammad - Department of Mechanical Engineering, Shohadaye Hoveizeh University of Technology, Susangerd, Iran , Esrafili Ali - Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran , Esrafili Leili - Department of Chemistry, Tarbiat Modares University, Tehran, Iran
چكيده فارسي :
Herein, a new extraction method employing a surfactant-coated titanium-based nanomagnetic sorbent for the effective extraction of bisphenol A (BPA) from various water samples was developed. Initially, the titanium-based nanomagnetic particles (Fe3O4/SiO2/TiO2 NPs) were successfully synthesized and subsequently characterized by Transmission Electron Microscopy and Fourier-transform infrared spectrometry. Two cationic surfactants were then incorporated into the particles to form a new sorbent for enhancing the extraction of BPA through micelle formation [1, 2]. Once the analyte was extracted, it was desorbed from the sorbent and quantified by high performance liquid chromatography with ultra violet detection (HPLC-UV). Various factors affecting the extraction and desorption of the analyte were investigated in detail and the optimum conditions established. Under these established conditions, the calibration curve was linear over the concentration range of 1-500 ng/mL. The limit of detection was determined to be 0.5 ng/mL based on a signal-to-noise ratio (S/N) = 3. To test the extraction efficiency, the method was applied to various real water samples that were spiked. The average recoveries obtained from the spiked samples ranged between 92 - 105% with relative standard deviations of 3.2 - 7.7%. Finally, the approach was determined to be robust and effective for BPA environmental analysis.
