透析法是除去脂质体未包封药物的最简单和常用的方法，经采用透析法对匹罗卡品脂质体滴眼剂进行包裹率测定。根据实验测得包裹率及变异系数分别为３６．３％，０．４６％，该方法操作简单，结果准确。 Dialysis is the simplest and most commonly used method to remove the uncoated liposomes. The entrapment efficiency of pilocarpine liposomes was measured by dialysis. According to the experiment, the package rate and coefficient of variation were respectively 36.3% and 0.46%. The method is simple and accurate.