地桃花化学成分预试验及紫外-可见光谱研究  

Detecting Chemical Components of Urena Lobata L.by Preliminary Test and UV-Visible Spectra

作　　者：谢臻[1] 陈勇[1] 韦韬[1] 

机构地区：[1]广西中医学院药学院,广西南宁530001

出　　处：《广西科学院学报》2010年第3期225-227,共3页Journal of Guangxi Academy of Sciences

基　　金：广西中医学院重点课题(No.ZD09011);广西研究生教育创新计划项目(No.2009106001007M13)资助

摘　　要：采用试管法,对地桃花(Urena lobata L.)的水提取液、95%乙醇提取液、石油醚提取液进行化学成分预试,通过多种指示剂和显色剂的沉淀反应或颜色反应,初步推断地桃花中可能含有的化学成分,同时测定各提取液进行的紫外-可见光谱。通过预试验,可以初步确定地桃花中含有氨基酸和蛋白质、糖类、皂苷、鞣质、酚类、有机酸类、黄酮类,可能含有三萜类、甾体类等成分;地桃花的紫外-可见光谱具有明显的特征吸收峰。The chemical constituents of Urena lobata L.were studies by using preliminary test and UV-visible spectra diagnostic characteristics.The extracted mixture of Urena lobata L.from petroleum,purified water and 95% ethanol were studied by test tube method.The chemical constituents of Urena lobata L.was primarily demonstrated by precipitation reaction or color reaction with various indicator.The UV-visible spectra of Urena lobata L.was use to provide the scientific basis of Urena lobata L..The Preliminary test indicated that Urena lobata L.may contain chemical constituents such as amino acids and proteins,sugars,saponins,tannins,phenols,organic acids,flavonoids,triter penoids,steroid.The UV-visible spectra of Urena lobata L.have obvious feature absorption.The results of Preliminary test provide scientific evidence for further study of the chemical compositions and quality standard of Urena lobata L..

关 键 词：化学成分 地桃花 预试验 紫外-可见光谱 

分 类 号：R284.1[医药卫生—中药学]