Table 2.
The linear equations, coefficient of determination, and linear range of six components.
| Constituent | Linear equation | Linear range (μg·mL−1) | r | LOD (μg·mL−1) | LOQ (μg·mL−1) |
|---|---|---|---|---|---|
| Matrine | Y = 6.9958X − 7.136 | 23.84∼715.08 | 0.9998 | 0.08 | 0.24 |
| Gallic acid | Y = 27.728X − 3.6914 | 0.89∼26.64 | 0.9999 | 0.07 | 0.21 |
| Oxymatrine | Y = 8.6405X + 138.3 | 231.05∼6931.56 | 0.9998 | 0.11 | 0.31 |
| Catechin | Y = 37.684X + 4.6647 | 0.11∼3.42 | 0.9999 | 0.01 | 0.04 |
| Rutin | Y = 10.578X + 1.9008 | 0.35∼10.38 | 0.9997 | 0.04 | 0.11 |
| Ferulic acid | Y = 10.658X + 18.793 | 10.96∼328.92 | 0.9998 | 0.08 | 0.23 |