紫地榆中总鞣质的含量测定  

Determination of Total Tannins in Geranium strictipes

作　　者：骆婷婷[1] 蓝海[1] 张海珠[1] 谢雪宝 胡建勇 周萍[1] 

机构地区：[1]大理学院药学与化学学院,云南大理671000 [2]大理州食品药品检验所,云南大理671000

出　　处：《大理学院学报（综合版）》2014年第2期12-14,共3页Journal of Dali University

基　　金：国家自然科学基金资助项目(81260512)

摘　　要：目的：建立紫地榆总鞣质的含量测定方法。方法：以没食子酸为对照品，采用比色法测定紫地榆总鞣质的含量。结果：以没食子酸计，紫地榆鞣质浓度在2．03～12．17μg／mL范围内与吸光度成良好的线性关系（r=0．9994）；平均加样回收率为99．1％，RSD为2．32％（n=8）。结论：该方法简便快速准确，可用于紫地榆总鞣质的含量测定。Objective： To establish a method for the determination of total tannins in Geranium strictipes. Methods： With Gallic acid as reference substance, the UV spectrophotometer was adopted to determine the content of total tannins. Results： With Gallic acid as a standard, Tannins of Geranium strictipes showed good linear relationship in the range of 2.03-12.17 μg/mL （r = 0.999 4）. The average recovery was 99.1%, RSD was 2.32% （n=8）. Conclusion： The method was simple, rapid and accurate, which could be used to measure the content of tannins in Geranium strictipes.

关 键 词：紫地榆 总鞣质 没食子酸 比色法 

分 类 号：R284[医药卫生—中药学]