کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1163877 1490960 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Molecularly imprinted polymer microspheres prepared by Pickering emulsion polymerization for selective solid-phase extraction of eight bisphenols from human urine samples
ترجمه فارسی عنوان
میکروسپرسهای پلیمری که از لحاظ مولکولی جذب شده توسط پلیمرازی امولسیون پیکرینگ برای استخراج جامد فاز انتخابی هشت بسفنول از نمونه های ادرار انسان ساخته شده اند
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• BPA imprinted polymer microspheres were prepared by Pickering emulsion polymerization.
• Regular spherical shape and narrow diameter distribution.
• Good specific adsorption capacity for BPA.
• Good class-selectivity and clean-up efficiency for bisphenols in human urine under SPE mode.
• Good recoveries and sensitivity for bisphenols using the MIPMS-SPE coupled with HPLC-DAD method.

The bisphenol A (BPA) imprinted polymer microspheres were prepared by simple Pickering emulsion polymerization. Compared to traditional bulk polymerization, both high yields of polymer and good control of particle sizes were achieved. The characterization results of scanning electron microscopy and nitrogen adsorption–desorption measurements showed that the obtained molecularly imprinted polymer microsphere (MIPMS) particles possessed regular spherical shape, narrow diameter distribution (30–60 μm), a specific surface area (SBET) of 281.26 m2 g−1 and a total pore volume (Vt) of 0.459 cm3 g−1. Good specific adsorption capacity for BPA was obtained in the sorption experiment and good class selectivity for BPA and its seven structural analogs (bisphenol F, bisphenol B, bisphenol E, bisphenol AF, bisphenol S, bisphenol AP and bisphenol Z) was demonstrated by the chromatographic evaluation experiment. The MIPMS as solid-phase extraction (SPE) packing material was then evaluated for extraction and clean-up of these bisphenols (BPs) from human urine samples. An accurate and sensitive analytical method based on the MIPMS-SPE coupled with HPLC-DAD has been successfully established for simultaneous determination of eight BPs from human urine samples with detection limits of 1.2–2.2 ng mL−1. The recoveries of BPs for urine samples at two spiking levels (100 and 500 ng mL−1 for each BP) were in the range of 81.3–106.7% with RSD values below 8.3%.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 872, 4 May 2015, Pages 35–45
نویسندگان
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