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目的制备格拉司琼纳米乳(granisetron nanoemulsion,GRN—NE)并考察其理化特征。方法采用伪三元相图法筛选处方,以十四酸异丙酯(Isopropyl myristate,IPM)为油相、卵磷脂(Phosphatidyl choline,PC)和吐温80(Tween 80,T80)为表面活性剂、乙醇(Alcohol,Alc)为助表面活性剂,按GRN:IPM:PC:T80:Alc:water=0.05:1.15:1.4:1.25:14.6的配比,采用自微乳化法制备GRN—NE。用pH计、