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Reference type: Journal
Authors: Tang YW, Li M, Gao X, Liu XY, Ma Y, Li Y, Xu YX, Li JR
Article Title: Preconcentration of the antibiotic enrofloxacin using a hollow molecularly imprinted polymer, and its quantitation by HPLC.
Publication date: 2016
Journal: Microchimica Acta
Volume: 183
Issue: (2)
Page numbers: 589-596.
DOI: 10.1007/s00604-015-1681-7

Abstract: Hollow molecularly imprinted polymers (h-MIPs) consisting of K2Ti4O9 as a sacrifice matrix were synthesized for selective recognition of enrofloxacin (ENR). The h-MIPs possess a characteristic nanostructure and were characterized by Fourier transform infrared spectroscopy, X-ray powder diffraction and transmission electron microscopy. The h-MIPs have a fast adsorption kinetic (~10 min), high adsorption capacity and a good selectivity factor (2.4) for ENR. Following adsorption of ENR, it was eluted from the sorbent with methanol-acetic acid (8:2) and quantified by HPLC. The calibration plot extends from 0.5 to 16.0 ng mL-1 of ENR with a correlation coefficient of 0.9912, and the limit of detection is 0.24 ng mL-1 (at an S/N ratio of 3). The method was applied to the determination of ENR in spiked fish samples, and recoveries ranged from 68.88 to 100.29 % with relative standard deviations (for n = 3) between 1.6 and 4.4 %
Template and target information: enrofloxacin, ENR
Author keywords: Solid-phase extraction, Potassium tetratitanate, Polymethacrylate, X-ray powder diffraction, transmission electron microscopy, food analysis

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