Molecularly imprinted layer-coated silica nanoparticles for selective solid-phase extraction of bisphenol A from chemical cleansing and cosmetics samples

Analytica Chimica Acta
Rong ZhuQin Hu

Abstract

Highly selective molecularly imprinted layer-coated silica nanoparticles for bisphenol A (BPA) were synthesized by molecular imprinting technique with a sol-gel process on the supporter of silica nanoparticles. The BPA-imprinted silica nanoparticles were characterized by fourier transform infrared spectrometer, transmission electron microscope, dynamic adsorption and static adsorption tests. The equilibrium association constant, K(a), and the apparent maximum number of binding sites, Q(max), were estimated to be 1.25 x 10(5) mL micromol(-1) and 16.4 micromol g(-1), respectively. The BPA-imprinted silica nanoparticles solid-phase extraction (SPE) column had higher selectivity for BPA than the commercial C18-SPE column. The results of the study indicated that the prepared BPA-imprinted silica nanoparticles exhibited high adsorption capacity and selectivity, and offered a fast kinetics for the rebinding of BPA. The BPA-imprinted silica nanoparticles were successfully used in SPE to selectively enrich and determine BPA from shampoo, bath lotion and cosmetic cream samples.

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Citations

Apr 5, 2014·Journal of Molecular Recognition : JMR·Michael J WhitcombeIan A Nicholls
Mar 20, 2013·Journal of Pharmaceutical and Biomedical Analysis·Juan Ignacio CachoManuel Hernández-Córdoba
Apr 15, 2015·Homeopathy : the Journal of the Faculty of Homeopathy·Iris R Bell, Gary E Schwartz
Jul 4, 2016·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Zerong LongHongdeng Qiu
Jun 24, 2016·Journal of Separation Science·Zhixiong Zhong, Gongke Li
Jul 22, 2014·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Zhaohui ZhangRong Cai
Mar 16, 2013·International Journal of Molecular Sciences·Siti Farhana Abdul RaofMhd Radzi Abas
Mar 5, 2016·Chemical Society Reviews·Lingxin ChenJinhua Li
Aug 4, 2016·Analytical and Bioanalytical Chemistry·Fengxia SunXiayu Peng
Nov 29, 2017·International Journal of Analytical Chemistry·Gabriela IslasAlberto Cepeda
Jun 6, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·José GrauAlberto Chisvert
Feb 13, 2021·Critical Reviews in Analytical Chemistry·Sezin ErarpatSezgin Bakırdere
Aug 28, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Maria CeleiroMarta Lores

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