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盐酸小檗碱聚乙烯醇微粒的制备及其特性 被引量:1

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摘要 目的制备盐酸小檗碱聚乙烯醇微粒并观察其特性。方法以聚乙烯醇为载体,采用喷雾干燥法制备盐酸小檗碱聚乙烯醇微粒。考察其形态、粒径、跨度、载药量、包封率和体外溶出度。结果当药物和载体比例为1:2时,载体的量足够使药物包封,所制微粒为近球形表面有孔,平均粒径为17.21um,跨度为0.86,载药量为31.73%,包封率为93.94%,体外累积溶出百分率75min时平均可达90%以上。PH1.2人工胃液和PH6.8人工肠液的体外累积溶出百分率基本相同,差异无统计学意义。结论该制剂制备工艺简单,重复性好,所制微粒缓释趋势明显。
出处 《中国医学工程》 2011年第1期123-124,共2页 China Medical Engineering
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