【摘 要】 目的:正确区分大黄和土大黄,避免临床上误用。方法:对大黄和土大黄进行性状鉴别、显微鉴别、成分鉴别和理化鉴别,比较二者的不同之处。结果:二者在性状特征、显微组织特征、粉末特征、成分和荧光试验均有较大差异。结论:大黄与其伪品土大黄可以通过常用的生药鉴定方法区别。

    【关键词】 大黄 土大黄 生药学鉴定

    Rhubarb and Rumex Pharmacognostical identification

    Zeng Chengang

    【Abstract】 Objective:The purpose of the distinction between right and Rhubarb Rumex avoid misuse clinically. Methods:for Rhubarb Rumex traits and identification, microscopic identification, component identification and chemical identification, comparison of the differences between the two.Results:of the two characteristics of the characters, microstructure characteristics, powder characteristics, composition and assay are quite different.Rhubarb:and spurious conclusions Rumex Health through the commonly used methods to identify differences between drugs.

    【Key words】 Rhubarb Turkey Rhubarb Pharmacognosy Identification

    大黄为蓼科植物掌叶大黄Rheum Palmatum L.唐古特大黄Rheum tamguticumRheum Maxim.ex BalF.或药用大黄Rheum officimale Baill.的干燥根及根茎[1]。前二种习称“北大黄”;后者习称“南大黄”。掌叶大黄主产陕西、青海、甘肃、四川,唐古特大黄主产青海、甘肃、、四川、西藏,药用大黄主产四川、云南、湖北。土大黄为同属波叶组植物藏边大黄R. emodi Wall.、河套大黄(波叶大黄)R. hotaoense C. Y. Cheng et C. T. Kao、华北大黄R. franzenbachii Mvnt、天山大黄R. wit-teochii Lundstr. 等的根和根茎[1] ......