Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1602, Issue -, Pages 11-18Publisher
ELSEVIER
DOI: 10.1016/j.chroma.2019.05.022
Keywords
Surface molecularly imprinted polymers; MIL-101; Zeralenone; Coumarin-3-carboxylic acid; Self-made cartridge
Funding
- National Natural Science Foundation of China [21575034, 51502079, 21475119, 21775140]
- Fundamental Research Funds for the Henan Provincial Colleges and Universities in Henan University of Technology [2017RCJH10]
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Surface molecularly imprinted polymers (MIL-101@MIPs) were prepared using MIL-101 as supporting core, imprinted polymers as selective shell synthesized with coumarin-3-carboxylic acid as dummy template of Zearalenone (ZEN), methacrylic acid as functional monomer, and ethylene glycol dimethaaylate hydroxyethyl methacrylate as cross-linker. The polymers were characterized by scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and particle-size distribution analyses. MIL-101@MIPs were used as the sorbent to compose the self-made cartridge. The cartridge was used to purify and enrich ZEN from real samples. Under optimized SPE conditions, a self-made cartridge can be reused for at least seven cycles. Elution was monitored with a high-performance liquid chromatography-fluorescence detection system. The linearity of the method ranged within 6.25-250 ng kg(-1). The limits of detection ranged within 2.09 - 4.16 ng kg(-1), and the limits of quantification ranged within 6.25-12.50 ng kg(-1), respectively. The matrix effects of four real samples were discussed. The spiking recoveries of ZEN ranged within 81.70%-90.10% with relative standard deviations lower than 5.56%. The performance of the self-made cartridge and immunoaffinity column was compared by chromatography. (C) 2019 Elsevier B.V. All rights reserved.
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