Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (9): 1734.

• Articles • Previous Articles     Next Articles

Microwave-assisted Heating Preparation of Core-shell Ion-imprinted Polymer and Extraction of Cr(Ⅲ) from Urine

ZHANG Zhao-Hui1,2*, ZHANG Ming-Lei1, XU Tian-Zhen1, LUO Li-Juan1, YANG Xiao1, YAO Shou-Zhuo2   

  1. 1. College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, China;
    2. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China
  • Received:2010-01-21 Online:2010-09-10 Published:2010-09-10
  • Contact: ZHANG Zhao-Hui. E-mail: zhaohuizhang77@hotmail.com
  • Supported by:

    湖南省自然科学基金(批准号: 08JJ4004)、湖南省科技计划项目(批准号: 2009FJ3009)、湖南大学化学传感与计量国家重点实验室开放基金和湖南省林产化工重点实验室开放基金资助.

Abstract: An ion-imprinted polymer(IIP) was prepared via surface imprinting technique under the microwave-assisted heating using Cr(Ⅲ) ion as template, 3-aminopropyl trimethoxysilane as function monomer and tetraethyl orthosilicate(TEOS) as cross-linking agent. Compared with conventional method, the term of the polymerization was dramatically shortened five times by using microwave-assisted heating. The IIP was characterized by scanning electron microscope(SEM), and the result shows that the size of IIP is uniform and the thickness of the imprinted shell is about 40 nm. The adsorption capacity of IIP was investigated in detail. As packing material of SPE, the imprinted material was used to extract Cr(Ⅲ) from urine successfully.

Key words: Chromium(Ⅲ), Microwave-assisted, Ion-imprinted polymer, Solid-phase extraction, Core-shell

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