Related Experiment Video
Updated: Aug 15, 2026

Technical Approach for Structural Analysis of an Unknown Compound in Huoxiang Zhengqi Oral Liquid based on Linear Ion Trap Mass Spectrometry
Published on: April 3, 2026
[A new isoflavone from Huoxue Yiqi Tang]
Xue-Min Ma1, Li-Sheng Wang, Ya-Jian Guo
1Beijing University of Traditional Chinese Medicine, Beijing 100102, China.
Objective:
To study the chemical constituents in the active parts of Huoxue Yiqi Tang.
Method:
The silica gel, Sephadex LH-20 were used to isolate the compounds, El, FAB-MS and 1D, 2D-NMR were used to identify the obtained compounds.
Result:
14 compounds were obtained from the prescription.
Conclusion:
They were all first time obtained from the prescription. Among them, 7, 3'-dihydroxyl-5'-methoxyisoflavone is new.
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