Preparation of core-shell magnetic molecularly imprinted polymers for extraction of patulin from juice samples
文献类型： 外文期刊
作者： Zhao, Minjuan 1 ; Shao, Hua 1 ; Ma, Jun 1 ; Li, Hui 1 ; He, Yahui 1 ; Wang, Miao 1 ; Jin, Fen 1 ; Wang, Jing 1 ; Abd El-Aty, 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Beijing 100081, Peoples R China
2.Beijing Technol & Business Univ, Beijing 100048, Peoples R China
3.Guangxi Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Nanning 530000, Peoples R China
4.Qilu Univ Technol, Shandong Acad Sci, Coll Food Sci & Engn, State Key Lab Biobased Mat & Green Papermaking, Jinan 250353, Peoples R China
5.Cairo Univ, Fac Vet Med, Dept Pharmacol, Giza 12211, Egypt
6.Ataturk Univ, Med Fac, Dept Med Pharmacol, TR-25240 Erzurum, Turkey
关键词： Patulin; Magnetic molecularly imprinted polymers; Juice; Magnetic dispersion solid-phase extraction; LC-MS/MS; HPLC-DAD
期刊名称：JOURNAL OF CHROMATOGRAPHY A （ 影响因子：4.759； 五年影响因子：4.302 ）
ISSN： 0021-9673
年卷期： 2020 年 1615 卷
页码：
收录情况： SCI
摘要： In this study, a novel magnetic molecularly imprinted polymer (MMIP) was prepared by surface imprinting technology using 2-oxin and 6-HNA as dual virtual templates and 4-vinyl pyridine (4-VP) as the functional monomer for extraction of patulin (PAT) from the surface of magnetic nanoparticles. MMIPs were characterized by fourier transformed infrared (FT-IR) spectroscopy, X-ray diffraction, and vibrating sample magnetometry. The results showed that the molecularly imprinted polymer (MIP) was successfully coupled with magnetic nanoparticles and could be used as a magnetic selective recognition material. Moreover, MMIPs have a greater adsorption capacity for PAT than conventional MIPs. The magnetic dispersion solid-phase extraction procedure was optimized and then combined with liquid chromatography-tandem mass spectrometry (MDSPE-LC-MS/MS) for detection of PAT in juice samples. The method showed excellent analytical performance in terms of linearity (ranged between 0.5 mu g L-1 and 100 mu g L-1 with correlation coefficients (r) higher than 0.999) and limit of detection (LOD) (0.1 mu g L-1, S/N = 3). At three spiking concentrations (1, 10, and 50 mu g L-1), the mean recoveries were ranged between 79.4% and 97.9% with relative standard deviations (RSDs) < 4.7% (n = 3). (C) 2019 Elsevier B.V. All rights reserved.
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