کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5135000 1493408 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Application of dispersive solid phase extraction based on a surfactant-coated titanium-based nanomagnetic sorbent for preconcentration of bisphenol A in water samples
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Application of dispersive solid phase extraction based on a surfactant-coated titanium-based nanomagnetic sorbent for preconcentration of bisphenol A in water samples
چکیده انگلیسی


- New dispersive solid phase extraction method.
- Surfactant-coated titanium-based nanomagnetic sorbent.
- Efficient and fast sample preparation method.
- Appropriate pre-concentration factor and method detection limit.

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. 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 3.2-7.8%. Finally, the approach was determined to be effective for BPA environmental analysis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1518, 6 October 2017, Pages 25-33
نویسندگان
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