The adsorption and desorption rates of flavonoids from celery by six kinds of macroporous resins were investigated.It was found that XAD-16 resin exhibited higher adsorption capability.So it was suitable for purification of flavonoids from celery.The optimal parameters for the resin was that the experiment was done at ambient temperature,adsorption flow rate 4 BV/h,adsorption volume was 15 times bed volume when solution at a concentration of 0.55 mg/mL,50 % ethanol as the desorption solvent,desorption flow ...