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Citation: LIU Yunan, ZHANG Zhaohui, ZHANG Minglei, CHEN Xing, CHEN Hongjun, NIE Lihua. Preparation and Application in Solid-phase Extraction of Di(2-ethylhexyl)phthalate Surface Imprinted Polymers[J]. Chinese Journal of Applied Chemistry, ;2013, 30(3): 316-322. doi: 10.3724/SP.J.1095.2013.20208 shu

Preparation and Application in Solid-phase Extraction of Di(2-ethylhexyl)phthalate Surface Imprinted Polymers

a. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;
b. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China

Received Date: 18 May 2012
Revised Date: 23 July 2012

Surface molecularly imprinted polymer(H-SiO₂@MIP) based on hybrid silica microspheres was prepared by using di(2-ethylhexyl)phthalate(DIOP) as the template molecule,methacrylic acid(MAA) as the functional monomer and ethylene glycol dimethacrylate(EGDMA) as the cross-linking agent. The H-SiO₂@MIP was characterized by scanning electron microscope(SEM) and infrared spectroscopy(IR). The results showed that DIOP imprinted layer was grafted on particles surface successfully. The H-SiO₂@MIP has uniform spherical structure and the thickness of imprinted shell is about 60-70 nm. The adsorption properties were investigated by high performance liquid chromatography,and results demonstrated that the H-SiO₂@MIP exhibited specific selectivity towards DIOP. The maximum adsorption capacity of H-SiO₂@MIP was 50.35 mg/g,and the selectivity factor of DIOP towards dibutyl phthalate(DBP) and dimethyl phthalate(DEP) was 2.31 and 2.47,respectively. Packed into a solid-phase extraction(SPE) column,the H-SiO₂@MIP could separate and enrich DIOP from milk sample.
- imprinted polymer,
- di(ethylhexyl) phthalate,
- surface imprinting,
- solid-phase extraction
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Preparation and Application in Solid-phase Extraction of Di(2-ethylhexyl)phthalate Surface Imprinted Polymers

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