摘要
目的:建立太白楤木根皮中总皂苷含量的测定方法。方法:采用TLC薄层色谱法,以甲醇-氯仿-水(6.5∶3.5∶1)为展开剂展开后,用10%硫酸乙醇溶液显色,并在105°C下加热进行鉴别。接着以香草醛-冰醋酸法显色,以屏边三七苷为对照品,在检测波长553 nm处对太白楤木总皂苷采用紫外-可见分光光度法进行含量测定。结果:在TLC色谱中,供试品与对照品色谱相应的位置上,日光下显相同的紫色斑点;紫外灯(365 nm)下显相同的紫色荧光斑点。屏边三七苷在0.020 65~0.123 9 g.L-1线性关系良好(r=0.999 9),平均加样回收率为100.20%,RSD 0.88%(n=6),太白楤木根皮中总皂苷中总皂苷含量为61.30%。结论:以太白楤木根皮总皂苷含量为主要评价指标,所建立的方法准确、简便、快速,重复性好,可作为太白楤木根皮中总皂苷含量控制方法。
Objective: To establish the quality standard of total saponins of Aralia taibaiensis.Method: A.taibaiensis was identified by TLC and spots were visualized by heating silica gel plates sprayed with 10% H2SO4 in EtOH,and the content of total saponins of A.taibaiensis was determined by visible ultraviolet spectrophotometry.Result: The TLC spots of A.taibaiensis were clear and well separated.The linear ranges of total saponins was 0.020 65-0.123 9 g.L-1(r = 0.999 9),and the average recovery rate was 100.20%(RSD 0.885%).Conclusion: The established standard is applicable for the quality control of A.taibaiensis.
出处
《中国实验方剂学杂志》
CAS
北大核心
2013年第12期76-78,共3页
Chinese Journal of Experimental Traditional Medical Formulae
基金
国家自然科学基金项目(81001673)
陕西省"13115"科技创新工程重大科技专项(2010ZDKG-62)
陕西省自然科学基础研究项目(2010JQ4018)
关键词
太白楤木
总皂苷
紫外-可见分光光度法
含量测定
Aralia taibaiensis
total saponins
ultraviolet spectrophotometry
content determination