Content Determination of Quercetin and Kaempferol in Flueggea virosa(Roxb.ex Wild.)Baill.

[Objectives]The purpose was to determine the contents of quercetin and kaempferol in Flueggea virosa(Roxb.ex Wild.)Baill.,thereby providing reference data for the research and application of F.virosa.[Methods]Quercetin and kaempferol in F.virosa were extracted with ultrasonic method,using dilute hydrochloric acid-methanol(1∶10)solution as the extraction solvent,and their contents were determined with RP-HPLC.[Results]The contents of quercetin and kaempferol in F.virosa were 0.2336 and 0.3272 mg/g,respectively.[Conclusions]The method has high speed,high resolution,high sensitivity,accurate and reliable detection results,and can be used as a method for the determination of quercetin and kaempferol in F.virosa.

白饭树总生物碱的提取分离与鉴定

目的:对白饭树中的总生物碱成分进行提取分离和鉴定。方法:采用水提法进行提取,D101型大孔吸附树脂进行分离,利用试管法、薄层层析法(TLC)进行鉴定。结果:从白饭树中可提取出生物碱,并经初步鉴定出其生物碱主要存在乙醇洗脱液。结论:水提法、D101型大孔吸附树脂分离法和试管法、薄层层析法鉴定法简易可行,适用于提取、分离和鉴定白饭树总生物碱。

白饭树的生药鉴别

目的对大戟科植物白饭树进行生药学研究。方法采用性状、显微及可见-紫外光谱等方法鉴别白饭树。结果白饭树的根具较窄的髓部,粉末中淀粉粒、草酸钙簇晶及晶鞘纤维众多,氯仿提取液在419、668 nm处有吸收峰等。结论所用方法可为白饭树的质量标准的制定及进一步研究提供参考依据。