考察无机陶瓷膜在制首乌颗粒水提液精制过程中，不同孔径的膜对该体系的适用性，并进行膜过程优化设计。方法以制首乌水提液为研究对象，测定了3种不同孔径膜及不同操作参数下膜渗透通量及有效成分的变化等。结果50nm膜的膜渗透通量和二苯乙烯苷转移率均明显高于其他两种膜。

observe the effect of the diffe rent bore diameter membranes on technolo gical param eters of Radix Poly goni Multiflori G ranula and to optimize the process of mem brane filt ration.Methods Three different mem branes were tested under different parameters of operation to observe the changes in membrane flux and the content of ef fective components by Radix Poly.

国家科技支撑项目(2006BA09B07-07)