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Experimental results of determination of wogonin in Qinbai extract by HPLC.
| Sample name | Quality | Volume (ml) | Retention time | Peak area | Concentration (μg/ml) | Content (μg/g) |
|---|---|---|---|---|---|---|
| Wogonin | 1.05 | 100 | 23.970 | 857683 | 10.5 | |
| Qinbai1 | 1.0386 | 10 | 23.971 | 267595 | 3.28 | 31.54 |
| Qinbai2 | 1.0327 | 10 | 23.967 | 265611 | 3.25 | 31.49 |
| Qinbai3 | 1.0337 | 10 | 23.970 | 271910 | 3.33 | 32.20 |
| Average value | 31.74 |
