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The contents of five marker constituents in Si-Ni-San (freeze-dried powder) determined by 3D-HPLC.
| Compound | Paeoniflorin | Naringin | Hesperidin | Licorice acid |
|---|---|---|---|---|
| Contentsa (mg/g) | 507.4 ± 0.03 | 167.5 ± 0.01 | 135.1 ± 0.02 | 136.6 ± 0.02 |
aData expressed as mean ± SD (n = 4).
