The adsorption and desorption rates of 4 types of adsorption resins towards shikimic acid from the Pine Needles were investigated.Among the studied ion exchange resin,33] anion exchange resin was the most suitable to purify crude shikimic acid from the Pine Needles.When 4BV of 1.5mg/mL sample was flowed through 331 anion exchange resin column at a speed of 2mL/min,the adsorption of the 331 anion exchange resin reached dynamic equilibrium.The adsorbed shikimic acid could be completely eluted with 8BV of 2% sodium hydroxide solution at 4mL/min.After the purification,the purity of shikimic acid w...