Acta Chimica Sinica ›› 2009, Vol. 67 ›› Issue (24): 2833-2839. Previous Articles     Next Articles

Special Topic

多壁碳纳米管表面过氧化苯甲酰印迹复合材料的制备及固相萃取应用

张朝晖1,张华斌2   

  • 收稿日期:2009-05-31 修回日期:2009-08-22 出版日期:2009-12-28 发布日期:2010-02-04
  • 通讯作者: 张朝晖 E-mail:zhaohuizhang77@hotmail.com
  • 基金资助:

    湖南省自然科学基金(No. 08JJ4004); 湖南省教育厅优秀青年基金(No. 07B061);湖南大学化学传感与计量国家重点实验室开放基金;吉首大学研究生科研创新基金资助项目

Preparation and Application of the Multi-walled Carbon Nanotubes Surface Benzoyl Peroxide Imprinted Composite Solid-Phase Extraction Materials

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  • Received:2009-05-31 Revised:2009-08-22 Online:2009-12-28 Published:2010-02-04

A novel surface imprinting material based on multi-wall carbon nanotubes (MWNTs) was successfully synthesized with a precipitation polymerization method using benzoyl peroxide (BPO) as template, methacrylic acid (MAA) as the functional monomer, ethylene glycol dimethacrylate (EGDMA) as the cross-linker, 2, 2′-azobis-isobutyronitrile (AIBN) as the initiator. The molecularly imprinted polymers (MIPs) based on the surface of MWNTs was characterized by IR and differential thermal analysis (DTA). The adsorption amount of benzoyl peroxide by MIPs was measured by high performance liquid chromatography (HPLC) and equilibrium binding experiment. The results showed that a kind binding site is observed for the imprinted polymers to the benzoyl peroxide (BPO) with the maximum apparent binding constant 56.20µmol/g. By using as solid-phase extraction materials, the imprinted polymers extracted benzoyl peroxide from flour successfully with the concentration enrichment factor of 526.

Key words: molecularly imprinted polymer, multi-walled carbon nanotube, benzoyl peroxide, high performance
liquid chromatography