Solid phase extraction of bisphenol A using magnetic core-shell (Fe3O4@SiO2) nanoparticles coated with an ionic liquid, and its quantitation by HPLC

被引：47

作者：

Chen, Songqing ^{[1
]}

Chen, Jieping ^{[1
]}

Zhu, Xiashi ^{[1
]}

机构：

[1] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China

来源：

MICROCHIMICA ACTA | 2016年 / 183卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Microextraction; Extraction kinetics; Magnetic nanomaterial; Magnetometry; FTIR; Fluorescnece; Quantumyield; PHENOLIC-COMPOUNDS; ACTIVATED CARBONS; WATER SAMPLES; FOOD SAMPLES; MICROEXTRACTION; NANOCOMPOSITES; CHROMATOGRAPHY; ADSORPTION; PESTICIDES; KINETICS;

D O I：

10.1007/s00604-016-1757-z

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Core-shell nanoparticles (NPs) of the type Fe3O4@SiO2 were prepared, coated with 3 different ionic liquids, and tested for their capability of extracting bisphenol A (BPA). The results showed BPA is best extracted by NPs of the type Fe3O4@SiO2@[OMIM] (where OMIM stands for 1-octyl-3-methylimidazole hexafluorophosphate). Following desorption with methanol, BPA was quantified by HPLC with fluorescence detection in the UV. The following figures of merit were found under optimal conditions: A linear range from 0.5 to 2.0 x 104 mu g center dot LaEuro3/4(1), a detection limit of 90 ng center dot LaEuro3/4(1), a relative standard deviation of 1.2 % (for n = 3 and 10 mu g center dot LaEuro3/4(1)), and a pre-concentration factor of 25. The NPs can be re-used up to 10 times. The method was successfully applied to the determination of BPA in plastic tableware.

引用

页码：1315 / 1321

页数：7

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