Abstract: Adsorption and desorption characteristics of macroporous adsorption resins ADS-5, ADS-8, ADS-17, NKA-9, D-101 and AB-8 toward flavones of hawthorn leaves were investigated.Based on static adsorption, the best macroporous adsorption resin was chosen to carry out dynamic adsorption experiments. The result showed that the best resin to separate and purify total flavones of hawthorn leaves was D-101. The preferred adsorbing and desorbing conditions were determined through studying the affecting factors on utilization efficiency of D-101 resin at room temperature.

Key words: macroporous adsorption resins, total flavones, hawthorn leaves, separation and purification