Objective To establish the quality standards of Cynanchum auriculatum Royle ex Wight in Hubei province.
目的通过对湖北产耳叶牛皮消的品质评价，初步建立该药材的质量标准。
Methods Qualitative analysis of Sanguisorba Officinalis and Arnebia euchroma(Royle)Johnst were identified by TLC and the content of Zinc in Galamine was determined by complexometric titration.
方法对主要成分地榆和紫草作薄层鉴别；对主药炉甘石采用络合滴定法测定锌含量。
Methods Qualitative analysis of Sanguisorba Officinalis and Arnebia euchroma(Royle)Johnst were identified by TLC and the content of Zinc in Galamine was determined by complexometric titration.
方法对主要成分地榆和紫草作薄层鉴别；对主药炉甘石采用络合滴定法测定锌含量。
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