大花龙胆的生药学鉴别

Pharmacognostical identification on Gentiana szechenyii

目的对大花龙胆进行生药学鉴别。方法采用性状鉴别、显微鉴别、理化鉴别等方法。结果与结论找出了其药材性状、组织构造上的主要鉴别特征,建立了薄层色谱鉴别方法,并拟订了水分、总灰分及酸不溶性灰分的限量标准,可为大花龙胆药材的鉴别及质量标准的制订提供依据。

OBJECTIVE To identify pharmacognostical characteristics of Gentiana szechenyii Kanitz. METHODS G. szechenyii were identified by macroscopic identification, microscopic identification and physiochemical identification. RESULTS and CONCLU- SION The main characteristics of G. szechenyii were found in the pharmacognosy and organizational structure. A TLC identification method was established and a limit standard of moisture, total ash and acid insoluble ash were also developed. The research can provide a reference for the identification and the quality standards of G. szechenyii.