Table 4. The linearity, correlation coefficient (R2), limit of detection (LOD) and limit of quantification (LOQ)
| Compound | Linear range (μg/mL) | Regression equation1) | R2 (n=4) | LOD (μg/mL) | LOQ (μg/mL) |
| p-Coumaric acid | 1-10 | y=65115x-8933 | 1 | 0.082 | 0.249 |
y, peak area; x, concentration (μg/mL).