Preparation and Evaluation of Core-Shell Resveratrol Molecularly Imprinted Microspheres
- VernacularTitle:核-壳型白藜芦醇分子印迹微球研制及应用
- Author:
Minglei ZHANG
;
Zhaohui ZHANG
;
Li LIU
;
Liji ZHANG
;
Lihua NIE
- Publication Type:Journal Article
- Keywords:
Molecularly imprinted microsphere;
Resveratrol;
Adsorption property;
Core-shell
- From:
Chinese Journal of Analytical Chemistry
2010;38(1):129-132
- CountryChina
- Language:Chinese
-
Abstract:
Employing resveratrol as template molecule, acrylamide as functional monomer and ethyleneglycol dimethacrylate as cross-linkers, a core-shell resveratrol imprinted microspheres was prepared based on the surface of SiO_2 with a surface imprinting technique.The molecularly imprinted microsphere was characterized by infrared spectroscopy and scanning electron microscopy, and the results showed that the surface grafting of molecularly imprinted polymer-shell particle on SiO_2 was successful and the particles were evenly distributed.High performance liquid chromatography was also used to investigate the imprinted microsphere adsorption per formance, and the results showed that the imprinted microsphere exhibited good recognition performance.The maximum adsorption capacities were Q_(maxl)=9.087 mg/g and Q_(max2)= 13.80 mg/g by the model of Scatchard analysis.The imprinted micospheres was applied to separate resveratrol from the extraction of rhizoma polygoni cuspidate successfully.
