藕节的TLC鉴别和浸出物含量测定

Identification and studies on extract of Nodus Nelumbinis Rhizomatis

目的对藕节药材的鉴别方法及浸出物进行研究。方法:采用TLC法对藕节药材进行鉴别研究,用65%乙醇测其浸出物。结果:薄层鉴别斑点明显,65%乙醇为溶剂测其浸出物方法可行。结论:以3-表白桦脂酸、β-谷甾醇为对照可以鉴别藕节药材,不同地区市售藕节65%乙醇浸出物差异较大。

Objective：To study the identification method and extract of Nodus Nelumbinis Rhizomatis.Methods：The identification of Nodus Nelumbinis Rhizomatis was carried out by TLC and the extract was determined by 65% alcohol.Results：The relevant spots on TLC plates were clear,and it was feasible to determine the extract of Nodus Nelumbinis Rhizomatis with 65% alcohol.Conclusion：Nodus Nelumbinis Rhizomatis can be identificated by 3-epibetulinic acid and β-sitosterol as reference substance,there were differents on quantity of the extract of Nodus Nelumbinis Rhizomatis,which bought from different districts.