MOLERCULARLY IMPRINTED POLYMERIC PEARLS FOR SELECTIVE EXTRACTION OF HYPERICIN FROM PHYTOEXTRACTS

摘要

The invention relates to molecularly imprinted polymeric pearls meant for the selective extraction of hypericin from phytoextracts. According to the invention, the pearls are made of acrylonitrile-co-acrylic or methacrylic acid copolymers with 75...90% acrylonitrile and, for the remainder, acrylic or methacrylic acid, having a relative polymer viscosity of 1.45...1.95, a diameter of 0.8...1.2 mm, a specific surface of 70...120 m/g and an imprinting factor of 2...4.5.