Table 5.
Linearity of the high performance liquid chromatography methods for cholesterol and hypericin
| Compound | LR | Slope | SD (LR) | R2 | LOD (M) | LOQ (M) |
| Cholesterol | y = 1 × 107 x + 3 × 106 | 11712479 | 2055881 | 0.998 | 0.58 × 10-3 | 1.76 × 10-3 |
| Hypericin | y = 2 × 106x + 2 × 105 | 2066297 | 433480 | 0.998 | 0.69 × 10-6 | 2.1 × 10-6 |
LR: Linear regression; SD (LR): Standard deviation of regression line; R2: Coefficient of correlation; y: Peak area; x: Compound concentration; LOD: Limit of detection; LOQ: Limit of quantification.