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Reference type: Journal
Authors: Chen HY, Zhang YQ, Gao B, Xu Y, Zhao Q, Hou J, Yan J, Li GJ, Wang H, Ding L, Ding J, Zhao C
Article Title: Fast determination of sulfonamides and their acetylated metabolites from environmental water based on magnetic molecularly imprinted polymers.
Publication date: 2013
Journal: Environmental Science and Pollution Research
Volume: 20
Issue: (12)
Page numbers: 8567-8578.
DOI: 10.1007/s11356-013-1795-6

Abstract: Group-selective magnetic molecularly imprinted polymers (MMIPs) that can extract four widely used sulfonamide antibiotics and their acetylated metabolites from environmental water were synthesized in this study. The MMIPs with saturation magnetization value of 16.7 emu g-1 could be separated from the environmental water samples easily by the application of an adscititious magnetic field, reducing the time consumption of pretreatment. The extraction conditions were evaluated, and optimal extraction conditions were as follows: extraction time, 25 min; amount of polymers, 90 mg; washing solvent, 30 % methanol aqueous solution; and elution solvent, methanol-acetic acid (95:5, v/v). The target analytes were detected by liquid chromatography-tandem mass spectrometry, and the detection limits of the method are in the range of 0.38-1.32 ng L-1. The relative standard deviations of intra- and inter-day are in the range of 1.3-6.8 % and 1.7-9.1 %, respectively. The proposed method is suitable for the analysis of environmental water samples
Template and target information: sulfonamide antibiotics, acetylated metabolites of sulfonamide antibiotics, Sulfadiazine, SD, sulfamonomethoxine, SMM, sulfamethoxydiazine, SMD, sulfaquinoxaline, SQ
Author keywords: sulfonamides, Acetylated metabolites, environmental water, molecularly imprinted polymer, Magnetic, Scatchard analysis, Matrix effect, Liquid chromatography-tandem mass spectrometry

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