Analytical and Bioanalytical Chemistry

, Volume 410, Issue 25, pp 6539–6548 | Cite as

Superhydrophilic molecularly imprinted polymers based on a single cross-linking monomer for the recognition of iridoid glycosides in Di-huang pills

  • Wenhua JiEmail author
  • Rongyu Wang
  • Yan Mu
  • Xiao Wang
Research Paper


An efficient analytical method based on molecularly imprinted solid-phase extraction (MISPE) coupled with high-performance liquid chromatography-diode array detection (HPLC-DAD) was established for the determination of iridoid glycosides (IGs) in Di-huang pills. As the solid-phase extraction medium, superhydrophilic molecularly imprinted polymers (MIPs) with high affinity and selectivity to IGs in water media were fabricated using divinyl galactose as a single cross-linking monomer. The structure, porosity, and hydrophilicity of MIPs were characterized. The properties involving dynamic adsorption, kinetic adsorption, and selectivity were evaluated. Under optimal conditions the MISPE-HPLC-DAD based method was applied for loganin, morroniside, cornin, and sweroside determination in three kinds of Di-huang pills. The limits of detection of four IGs were 0.002–0.003 mg g−1. Furthermore, the proposed method exhibited some merits including good linearity, excellent precision, and desirable accuracy. The established MISPE-HPLC-DAD method has great potential for the selective determination of IGs in Chinese patent drugs.

Graphical Abstract


Superhydrophilic molecularly imprinted polymers Single cross-linking monomer Solid-phase extraction Iridoid glycosides Di-huang pills 



Financial support from the National Natural Science Foundation of China (No. 81603286), the Key Science and Technology Program of Shandong (No. 2016GSF202033), the Natural Science Foundation of Shandong (ZR2016YL006), the Priority Research Program of the Shandong Academy of Sciences (Lanping Guo), and the Shandong Province Taishan Scholar Program (Lanping Guo) are acknowledged.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

216_2018_1257_MOESM1_ESM.pdf (955 kb)
ESM 1 (PDF 955 kb)
216_2018_1257_MOESM2_ESM.avi (247 kb)
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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test CenterQilu University of Technology (Shandong Academy of Sciences)JinanChina

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