Preparation of hydrophilic molecularly imprinted solid-phase microextraction fiber for the selective removal and extraction of trace tetracyclines residues in animal derived foods

Journal of Separation Science
Yue LuTao Zhao

Abstract

The present work reported a novel hydrophilic and selective solid phase microextraction fiber by improved multiple co-polymerization method immobilization of tetracycline molecularly imprinted polymer on a stainless steel wire and directly coupled with high performance liquid chromatography for sensitive determination of trace tetracyclines residues in animal derived foods. The developed molecularly imprinted polymer coated solid phase microextraction fibers were characterized through scanning electron microscope, fourier transfer infrared spectrometry, thermogravimetry analysis and adsorption experiments, the fiber with cross-linked and porous structure was observed and high thermal and chemical stability. The maximum adsorption capacity of this fiber with good selectivity reached 2.35 μg/mg in aqueous matrices, and showed good repeatability (relative standard deviation< = 6.6%, n = 5) and satisfying reproducibility between fiber to fiber (relative standard deviation< = 7.8%, n = 5). Under the optimized solid phase microextraction conditions, satisfactory linearity (5-1000 μg/L) and detection limits (0.38-0.72 μg/kg, S/N = 3) for all the tetracyclines were obtained. The practicality of this method was proved by adding tetracyc...Continue Reading

References

Sep 30, 2017·Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences·Geng Nan WangJian Ping Wang
Sep 30, 2017·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Ji YangZhi-Yong Huang
Nov 9, 2017·Analytical Chemistry·Nathaly Reyes-GarcésJanusz Pawliszyn
Jan 18, 2018·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Aurélien DesmarchelierCindy Bion

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Citations

Oct 2, 2020·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Babra MoyoNikita T Tavengwa
Oct 10, 2020·Journal of Separation Science·Huasheng LaiZhuomin Zhang

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