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Reference type: Journal
Authors: Dramou P, Xiao DL, He H, Liu TB, Zou WY
Article Title: Loading behavior of gatifloxacin in urine and lake water on a novel magnetic molecularly imprinted polymer used as extraction sorbent with spectrophotometric analysis.
Publication date: 2013
Journal: Journal of Separation Science
Volume: 36
Issue: (5)
Page numbers: 898-906.
DOI: 10.1002/jssc.201200831

Abstract: The loading behavior of gatifloxacin (GTFX) in human urine and lake water on a novel magnetic molecularly imprinted polymer used as extraction sorbent with UV-Visible spectrometric analysis has been studied. The magnetic polymers had been prepared using GTFX as template molecule and Fe3O4 as magnetic component. The polymer had been characterized by SEM, Fourier-transform infrared spectrometry, and appropriate magnet separator. Parameters affecting the extraction efficiency were evaluated in order to achieve optimal loading and reduce nonspecific interactions. Good linearity of the method had been obtained in the range between 0.25 and 15 μg mL-1 by UV-Vis spectrophotometry at 286 nm with spectral analysis from 240 to 400 nm. The method detection and quantification limits of GTFX in water were 0.075 and 0.25 μg mL-1, respectively. This study showed good selectivity and loading efficiency (α > 2) of the polymers. The loading behavior of GTFX in the samples spiked on polymers had been obtained and each other with recovery higher than 91% with RSD% between 2.5 and 3.3. No pretreatment of samples were needed and no interference of compounds in urine and lake water were observed during adsorption.
Template and target information: gatifloxacin, GTFX
Author keywords: Gatifloxacin, Loading behavior, Magnetic polymers, sample preparation, Solid-phase extraction

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