甘草次酸脂化乳的质量评价指标探讨
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篇名: 甘草次酸脂化乳的质量评价指标探讨
TITLE:
摘要: 目的:为甘草次酸脂化乳的质量评价提供参考指标。方法:采用冷冻透射电子显微镜检测甘草次酸脂化乳粒子形态,激光纳米粒度仪测定其粒径、多分散系数(PDI)及电位情况;采用超高效液相色谱法测定其中有效成分甘草次酸的载药量;在30 ℃下放置10 d考察该制剂的稳定性。结果:制备的甘草次酸脂化乳轮廓清晰、结构完整、呈类圆形、排列紧密;平均粒径为(245.2±4.29) nm,PDI为(0.054±0.01),平均电位为(-6.25±0.54) mV;甘草次酸的载药量平均值为(1.25±0.09) mg/mL;质量浓度为0.82 mg/mL的样品在10 d内稳定性良好。结论:粒径、电位、载药量、稳定性可作为甘草次酸脂化乳的评价指标。
ABSTRACT: OBJECTIVE: To provide reference indexs for the quality evaluation of Glycyrrhetinic acid lipo-emul. METHODS:Croy-TEM was used to detect the morphology of Glycyrrhetinic acid lipo-emul, laser nano-particle size analyzer was used to determine the particle size, polydispersity index (PDI) and the zeta potential; UPLC was used to determine the drug loading of its active ingredient glycyrrhetinic acid; placing 10 d in 30 ℃, then stability was detected. RESULTS: Prepared Glycyrrhetinic acid lipo-emul was clear outline, structural integrity,roundlike and arranged closely; the mean particle size was (245.2±4.29) nm, PDI was (0.054±0.01) and the mean zeta potential was (-6.25±0.54) mV; the average drug loading of glycyrrhetinic acid was (1.25±0.09) mg/mL; the sample with mass concentration of 0.82 mg/mL showed good stability in within 10 d. CONCLUSIONS: Particle size, zeta potential, drug loading and stability can be used as the evaluation index of Glycyrrhetinic acid lipo-emul.
期刊: 2017年第28卷第6期
作者: 金粟,李士远,张秀荣,陈芳宁,王秀丽
AUTHORS: JIN Su,LI Shiyuan,ZHANG Xiurong,CHEN Fangning,WANG Xiuli
关键字: 甘草次酸脂化乳;质量评价;指标;载药量
KEYWORDS: Glycyrrhetinic acid lipo-emul; Quality evaluation; Index; Drug loading
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