甲基丙烯酸缩水甘油酯
乙二醇二甲基丙烯酸酯
分子印迹聚合物
固相萃取
分散性
色谱法
甲基丙烯酸酯
聚合物
高效液相色谱法
检出限
聚合
材料科学
吸附
萃取(化学)
链式转移
化学
化学工程
选择性
自由基聚合
高分子化学
甲基丙烯酸
有机化学
催化作用
工程类
作者
Xiu Liu,Junli Pu,Jianming Li,Bolin Gong
标识
DOI:10.1002/jssc.202100746
摘要
Using monodisperse poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) as the matrix, and pefloxacin template molecules, a novel restricted-access medium molecularly imprinted polymers with Bovine serum albumin crosslinked on its surface was prepared through reversible addition-fragmentation chain-transfer polymerization. Then, the obtained material was employed in dispersive solid-phase extraction to analyze the fluoroquinolones in untreated egg samples by high-performance liquid chromatography-ultraviolet detection. Adsorption performance revealed a good binding amount (40.72 mg/g), fast binding kinetics (25 min), satisfactory selectivity, and good ability to eliminate matrix interference. The reusability experiments indicated the materials have good reusable performance after repetition. Under the optimized conditions, restricted access media-molecularly imprinted polymers-dispersive solid-phase extraction was combined with high-performance liquid chromatography-ultraviolet to enrich fluoroquinolones in untreated eggs, good limit of detection (1.31-3.15 μg/L) and high recovery (89.5-96.8%) were obtained. The results showed that the prepared restricted-access material is promising for the direct detection of antibiotics in complex samples.
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