高效液相色谱指纹图谱 HPLC digital fingerprint
结果：云威灵炮制前后高效液相色谱图发生变化。
Results: The HPLC chromatogram of Inula nervosa changes before and after processing.
根据液相色谱图可知，乙酸乙酯萃取所得产品杂峰少，产品纯。
It can be included that the product has less impure peaks and was pure by the ethyl acetate extraction.
本实验采用高效液相色谱——指纹图谱法分析并比较了7种大黄的化学成分间的差异，绘制了条形图和检索表。
The differences of 7 kinds of Rheum were compared by HPLC-FPS in this study. The column figures and the retrieval table were drawn.
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