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Reference type: Journal
Authors: Chen LG, Li B
Article Title: Magnetic molecularly imprinted polymer extraction of chloramphenicol from honey.
Publication date: 2013
Journal: Food Chemistry
Volume: 141
Issue: (1)
Page numbers: 23-28.
DOI: 10.1016/j.foodchem.2013.02.085
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0308814613002483

Abstract: A rapid and selective method was successfully developed using magnetic molecularly imprinted polymer (MMIP) as sorbent for the extraction of chloramphenicol from honey samples. The extraction process was carried out in a single step by blending and stirring the sample, extraction solvent and polymers. When the extraction was completed, the MMIPs adsorbing the analyte were separated from the sample matrix by an external magnet. The analyte eluted from the MMIPs by methanol under ultrasound assisted was analysed by liquid chromatography - tandem mass spectrometry. Various parameters affecting the extraction efficiency were evaluated for achieving optimal recovery and reducing non-specific interactions. Under optimal conditions, the detection limit of CAP was 0.047 ng g-1. The relative standard deviations of intra- and inter-day ranging from 4.1% to 5.3% and from 2.9% to 7.1% were obtained, respectively. The method was applied to determine CAP in six honey samples. The recoveries of CAP in these samples from 84.3% to 90.9% were obtained
Template and target information: chloramphenicol, CAP
Author keywords: Honey, chloramphenicol, Magnetic molecularly imprinted polymer, Liquid chromatography - tandem mass spectrometry


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