Citation: QIU Xiuzhen, LIANG Yong, GUO Huishi. Preparation of microcystin-LR molecularly imprinted polymer coated stir bar and its adsorptive performances[J]. Chinese Journal of Chromatography, ;2014, 32(11): 1214-1218. doi: 10.3724/SP.J.1123.2014.07001 shu

Preparation of microcystin-LR molecularly imprinted polymer coated stir bar and its adsorptive performances

1.
1. College of Chemistry and Environmental Engineering, Shaoguan University, Shaoguan 512005, China;

Corresponding author: GUO Huishi,
Received Date: 1 July 2014
Available Online: 13 August 2014
Fund Project: 国家自然科学基金项目(21071099) (21071099)教育部留学回国人员科研启动基金(第39批) (第39批)韶关市科技计划项目(2012140544). (2012140544)

An effective method for the preparation of magnetic molecularly imprinted polymers (MIPs) on attapulgite (ATP) using microcystin-LR (MC-LR) as template molecule through reversible addition fragmentation chain transfer (RAFT) radical polymerization was reported. A novel MIPs stir bar sorptive extraction (SBSE) coating was prepared by sol-gel method. The structure and morphology of MIPs were characterized by infrared spectroscopy (IR) and transmission electron microscopy (TEM). The adsorption performance of SBSE coated with MC-LR was studied by high performance liquid chromatography (HPLC). The results showed that under the optimized experimental conditions, the present method has high selectivity to MC-LR. A good linearity was achieved for MC-LR over the range of 0.010-5.0 mg/L and the limit of detection (S/N=3) was found to be as low as 0.27 μg/L. The proposed method was successfully applied to the determination of MC-LR in water samples. The average recoveries ranged from 83.33% to 100.07% with the relative standard deviations (RSDs) of 1.40%-9.17% at three spiked levels (20, 40 and 80 μg/L). The developed method is rapid, selective and sensitive, and adapts to the analysis of trace MC in water samples.
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation of microcystin-LR molecularly imprinted polymer coated stir bar and its adsorptive performances

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com