苯磺酸左旋氨氯地平片在不同介质中的溶出度

更新时间:2023-05-17 08:19:41 阅读: 评论:0

苯磺酸左旋氨氯地平片在不同介质中的溶出度
作者:蒋宇丹 卜宇倩 张裕 谈亚平
来源:《上海医药》2012年第23期香干怎么炒好吃
        摘 要 目的:考察苯磺酸左旋氨氯地平片在盐酸溶液(9→1 000)、醋酸-醋酸钠缓冲液(pH 4.5)、磷酸盐缓冲液(pH 6.8)、水等介质中的溶出度。方法:采用《中国药典》2010年版二部附录XC第三法操作,转速为50 r/min,以紫外分光光度法测定溶液的光密度并计算溶出度。结果:两厂家苯磺酸左旋氨氯地平片在不同溶出介质中的溶出曲线基本一致,在盐酸溶液(9→1 000)中的累积溶出度最高。结论:苯磺酸左旋氨氯地平片为碱性物质,溶出速率受介质的pH影响较大。
社会知识        关键词 苯磺酸左旋氨氯地平片 溶出介质 溶出度
        中图分类号:R972.4; R944.4 文献标识码:B 文章编号:1006-1533(2012)23-0050-03
一幅春联
        The dissolution properties of levamlodipine besylate tablets in four different media
台球杆品牌排行
五月初五是什么节日北极虾的做法        JIANG Yu-dan, BU Yu-qian, ZHANG Yu, TAN Ya-ping
        (Shanghai Harvest Pharmaceutical Co., Ltd., Shanghai 201206, China)
住宅的开间        ABSTRACT Objective: To evaluate the dissolution properties of levamlodipine besylate tablets in four different media, including hydrochloric acid solution (9→1 000), acetic acid-sodium acetate buffer (pH 4.5), phosphate buffer (pH 6.8) and water. Methods: The third dissolution method in Chine pharmacopoeia was adopted to dissolve tablets at 50 r/min. Optical density of the solution was determined by UV spectrophotometry at wave length of 238 nm and then dissolution was calculated. Results: The dissolution profiles of levamlodipine besylate tablets from 2 different manufacturers in different media were basically same. The accumulated dissolution in hydrochloric acid solution was the highest. Conclusion: levamlodipine besylate tablets are alkaline substances and the dissolution rate is strongly affected by pH of the medium, so hydrochloric acid solution (9→1 000) was chon as the dissolution medium of levamlodipne besylate tablets.
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