1. Boronate-modified hollow molecularly imprinted polymers for selective enrichment of glycosides.
- Author
-
Yue Hu, Qinfei Xia, Wei Huang, Xingyu Hou, and Miaomiao Tian
- Subjects
- *
IMPRINTED polymers , *SOLID phase extraction , *SOYBEAN products , *GLYCOSIDES , *EMULSION polymerization , *FLAVONOID glycosides , *HIGH performance liquid chromatography , *BINDING sites - Abstract
D-Glucose was used as a dummy template in a strategy to fabricate boronate-based hollow molecularly imprinted polymers (h-MIPs) for the recognition of glycosides. 3-Aminophenylboronic acid (APBA) was selected as the functional monomer to impart glycoside binding capability. A polystyrene core was synthesized via an emulsifier-free emulsion polymerization. It was then be corroded to form a hollow structure where the binding sites on the inner surface can be fully utilized. Adsorption studies indicate that the resulting h-MIPs can specifically recognize glycosides. The h-MIPs were applied as a sorbent for solid phase extraction of the glycosides (daidzin, glycitin, rutin, and genistin) in soy products. Following desorption with 1% TFA in acetonitrile-water (3:7, v/v), the glycosides were quantified by HPLC with UV detection. The detection limits for the glycosides range from 3.5 to 10.8 ng⋅mL-1. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF