Objective : Study on adsorption and separation effect of Chinese medicine decoction by different pre-treatment methods with macro-porous resin

and determined its inherent laws. Method : The content of Salidroside as an indicator to select decoction of Rhodiola herb with once-alcohol precipitation

twice-alcohol precipitation by adding precipitant

precipitant added with alcohol and centrifugation procedure. In order to observe different methods of decoction refined have an effect on macro-porous resin adsorption. Result : The effect of purity of the water extract of Rhodiola and macro-porous resin separation is the best by the way of using twice-alcohol precipitation and adding precipitant and alcohol precipitation. Conclusion : Chinese medicine decoction by different pre-treatment methods had significant impact on adsorption and separation of macro-porous resin.