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The contents of matrine and berberine in the extract from Kushen and Huanglian.
| Compound | t R (min) | Regression equation | R2 | Linear rang (ng/ml) | Content (µg/g) |
|---|---|---|---|---|---|
| Matrine | 1.29 | Y = 34340*X − 86061 | 0.999 | 0.5–600 | 129.47 ± 9.82 |
| Berberine | 6.83 | Y = 97034*X + 2117352 | 0.999 | 1–600 | 232.87 ± 89.94 |
