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Regression data, linear range, correlation coefficient, and stability for three compounds (n = 3).
| Compound | Linear range (μg/mL) | Slope | Intercept | Correlation coefficient (R 2) | Stability (RSD (%)) | |
|---|---|---|---|---|---|---|
| Retention time | Peak area | |||||
| Liquiritin | 3.91–250.00 | 20031 | −19996 | 0.9997 | 0.21 | 3.09 |
| Baicalin | 3.91–250.00 | 38806 | −79724 | 0.9993 | 1.12 | 0.82 |
| Glycyrrhizin | 3.91–250.00 | 8959.4 | −15143 | 0.9996 | 1.10 | 1.05 |
