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本文提出了油酸多相脂质体139注射液中脂质体的药物包封率和药物含量的测定方法,以凝胶过滤法Sephadex G-50柱测定139注射液中多相脂质体的重量包封率Qw平均为94.2%;同时又以显微镜照像及统计方法测量了脂质体的体积包封率Qv平均为97.1%。并讨论了影响脂质体中药物包封率的各种因素。
In this paper, a method for the determination of drug entrapment efficiency and drug content of liposomes in oleic acid multiphase liposome 139 injection was established. Sephadex G-50 gel filtration method was used to determine the content of liposomes in multiphase liposomes The weight entrapment efficiency Qw averaged 94.2%. Meanwhile, the volume entrapment efficiency Qv of the liposomes was measured by microscope and statistical method to be 97.1%. The factors affecting the encapsulation efficiency of liposomes were discussed.