Analytical and Bioanalytical Chemistry

, Volume 410, Issue 2, pp 349–359 | Cite as

A strategy of utilizing Zn(II) as metallic pivot in room temperature ionic liquid to prepare molecularly imprinted polymers for compound with intramolecular hydrogen bonds

  • Ya Kun Sun
  • Man Jia
  • Jian Yang
  • Yan-Ping Huang
  • Zhao-Sheng LiuEmail author
  • Haji Akber AisaEmail author
Paper in Forefront


A method of preparing molecularly imprinted polymers (MIPs) with Zn(II) as a metallic pivot was adopted to solve the problem of imprinting compound with intramolecular hydrogen bonds by forming stronger coordination binding interaction among the template–functional monomer-Zn2+ complex. A ternary porogenic system including dimethyl sulfoxide, dimethylformamide, and room temperature ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate was employed to fabricate imprinted monolith with high porosity and good flow-through properties, in which chicoric acid (CA), zinc acetate, 4-vinylpyridine (4-VP), and ethylene glycol dimethacrylate (EDMA) was the template, metallic ion, functional monomer, as well as crosslinker, respectively. The influence of polymerization factors including the 4-VP-CA ratio, monomer-crosslinker ratio, template-Zn2+ ratio on imprinting factors was systematically investigated. When the ratio of 4-VP to CA was 24:1, the greatest IF value (24.81) was achieved on the CA-MIP prepared with zinc acetate. In addition, off-line SPE with the optimal MIPs monolith led to high purity of CA (98.0% ± 0.5%) from extraction of Cichorium intybus L. roots with the recovery of 77.5% ± 2.5% (n = 6). As a conclusion, the strategy of introducing metal ions as metal pivot to prepare MIPs was a powerful method for the MIPs synthesis to the template molecules with intramolecular hydrogen bonds.


Molecularly imprinted polymer Zn(II) Metallic pivot Solid phase extraction Chicoric acid Intramolecular hydrogen bonds 



This work was supported by the Joint Funds of the National Natural Science Foundation of China (grant no. U1303202), and the High Technology Research and Development Program of Xinjiang (no. 2016B03044-2).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

216_2017_765_MOESM1_ESM.pdf (549 kb)
ESM 1 (PDF 505 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  1. 1.Xinjiang Technical Institute of Physics and ChemistryChinese Academy of SciencesUrumqiChina
  2. 2.State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and ChemistryChinese Academy of SciencesUrumqiChina
  3. 3.University of Chinese Academy of SciencesBeijingChina

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