清热消炎宁胶囊中鞣质的快速测定  

Rapid assay of tannins in Qingre Xiaoyanning capsules

作　　者：王艳[1] 相秉仁[1] 

机构地区：[1]中国药科大学分析计算中心

出　　处：《药物分析杂志》2006年第9期1299-1301,共3页Chinese Journal of Pharmaceutical Analysis

摘　　要：目的:建立快速测定清热消炎宁胶囊中鞣质含量的紫外分光光度法。方法:供试液用聚酰胺吸附法选择性地除去鞣质,于280nm波长处分别测定供试液除去鞣质前后的吸收度,以吸收度之差用标准曲线法求得鞣质含量。结果:聚酰胺吸附法除去鞣质的性能和选择性都较好。对清热消炎宁胶囊的分析表明,供试液制备好后可在15min内给出鞣质的分析结果,线性范围为2.5～25mg·L^(-1),测得的鞣质含量的RSD为2.5%,平均回收率为98.5%。结论:本法可用于清热消炎宁胶囊中鞣质的含量测定。Objective：To establish a novel rapid assay method for tannins by ultraviolet spectrometry in Qingre Xiaoyanning capsules. Method ： At the wavelength of 280 nm, before and after tannins was eliminated by polyamide , the absorbency of the sample solution was measured respectively. The difference of the absorbency was used to determine the concentration of tannins by standard curve. Results：The amount of tannins in Qingre Xiaoyanning capsules was determined by the proposed method with satisfactory results within 15 rain. The linearity range was 2. 5 - 25 mg·L^-1 ,RSD of content is 2. 5% and average recovery was 98.5%. Conclusion：The proposed method is suitable for the assay of tannins in Qingre Xiaoyanning capsules.

关 键 词：鞣质 测定 紫外分光光度法 

分 类 号：R917[医药卫生—药物分析学]