MethodsUsing the orthogonal design, observed the effect of alcohol concentration, alcohol amount, extractive time on the extraction results, with the content of baicalin as the index.
2
方法：采用紫外分光光度法测定黄芩苷含量，比较水提法与液-液连续萃取法对黄芩苷提取率的差别。
Methods:Liquid-liquid continuous biphasic extraction was compared with the one of the traditional method of aqueous extraction and acidic deposition, determining the contents of total flavone by UV.
3
建立了黄芩药材中黄芩苷的亚临界水提取高效液相色谱测定方法。
A method for the extraction of baicalin from Radix Scutellariae with subcritical water coupled to high performance liquid chromatographic analysis was established.
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