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Validation of HPLC analysis method in terms of precision, stability and repeatability.
| Compounds | Precision (n = 6) RSD (%) | Stability (n = 6) RSD (%) | Repeatability (n = 6) RSD (%) |
|---|---|---|---|
| Liquiritin | 1.13 | 0.64 | 1.38 |
| Isoliquiritin | 0.67 | 0.83 | 2.21 |
| Liquiritigenin | 1.72 | 2.24 | 1.62 |
| Glycyrrhetinic acid | 1.07 | 0.74 | 2.37 |
