The large pore adsorption resin provided by Suzhou Bojie Resin Technology Co., Ltd. has strong adsorption capacity, long service life, stable physical and chemical properties, good selective separation effect, practicality and low cost. It is often used for purification and separation of organic matter and extraction of rutin. The effect is very ideal, and it has been widely used in the extraction process of rutin, which has been well received by domestic and foreign customers.