Abstract: This paper deals with a method based on magnetic molecularly imprinted polymers (MMIPs) as a sorbent. The method was used for simultaneous determination of fluoroquinolone antibiotics (ciprofloxacin, lomefloxacin, enoxacin, and norfloxacin) combined with high performance liquid chromatography (HPLC). MMIPs were characterized by different techniques (scanning electron microscopy, transmission electron microscopy, X-ray diffractometry, Fourier transform infrared spectrometry and vibrating sample magnetometry). Several parameters affecting the adsorption/desorption, including the amount of MMIPs, extraction and desorption times, desorption solvent, and sample pH, were investigated and optimized. Under the optimum conditions, the limits of detection (LODs) and the limits of quantification (LOQs) of the method were calculated to be 4.1-21.3 μg/L and 13.7-71.0 μg/L, respectively, and the recoveries of spiked samples ranged from 70.6% to 103.6%. The prepared MMIPs could be employed to selectively preconcentrate and determine fluoroquinolone antibiotics from environmental water samples.
Template and target information: fluoroquinolone antibiotics, ciprofloxacin, lomefloxacin, enoxacin, norfloxacin
Author keywords: high performance liquid chromatography (HPLC), Magnetic Molecularly Imprinted Polymers (MMIPs), sorbent, Fluoroquinolone antibiotics, Environmental water samples