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Reference type: Journal
Authors: Wan YY, Wang M, Fu QF, Wang LJ, Wang DD, Zhang KL, Xia ZN, Gao D
Article Title: Novel dual functional monomers based molecularly imprinted polymers for selective extraction of myricetin from herbal medicines.
Publication date: 2018
Journal: Journal of Chromatography B
DOI: 10.1016/j.jchromb.2018.08.033
Alternative URL: http://www.sciencedirect.com/science/article/pii/S1570023218310304

Abstract: Herein, novel dual functional monomers based molecularly imprinted polymers (MIPs) were successfully prepared and used to extract myricetin from Carthamus tinctorius L., also named safflower (family, Compositae) and the flower of Abelmoschus manihot (Linn.) Medicus (family, Malvaceae). The polymers were prepared using myricetin as template, 4-vinylpyridine (4-VP) and glycidyl methacrylate (GMA) as dual functional monomers, ethylene glycol dimethyl acrylate (EGDMA) as cross-linker and methanol-acetonitrile (1:2, v/v) as solvent, respectively. Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM) were applied to characterize the polymers. Further, the adsorption and selectivity experiments of MIPs were evaluated. The results revealed that MIPs showed high adsorption ability and selectivity toward myricetin. Finally, MIPs were employed as adsorbents for solid phase extraction (SPE) of myricetin from safflower and the flowers of A. manihot (Linn.) Medicus. Further analysis was conducted by using high performance liquid chromatography-diode array detection (HPLC-DAD). The recovery of mrricetin in safflower and in the flowers of A. manihot ranged from 79.82% to 83.91%, 81.50% to 84.32%, respectively. These results indicated that MIPs can be applied to the extraction and separation of myricetin from various complex matrixes
Template and target information: myricetin
Author keywords: Molecularly imprinted polymers, glycidyl methacrylate, dual functional monomers, Myricetin, solid phase extraction, Herbal medicines


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