The influencing effects of factor were followed as: A>C>D>B(A: added water volume,B: decoction time,C: decoction frequency,D: precipitating concentration of alcohol). The optimizing preparation conditions were A3B1C3D2,i. e.

• 水提醇沉制备工艺影响因素依次为:加水量(A)>煎煮次数(C)>醇沉质量分数(D)>煎煮时间(B)；最佳制备工艺条件为A3B1C3D2；即处方药材加10倍量水；煎煮3次；每次0.；5h；醇沉质量分数为50%25。