Table 6.
Linear relation between peak area and concentration (n = 3).
| Compound Number | Rt (min) | Regression Equation | r2 | Linear Range (μg/mL) | LOD (μg/mL) | LOQ (μg/mL) |
|---|---|---|---|---|---|---|
| 3 | 15.479 | y = (2.0 × 106)x + 13710 | 1.0000 | 1 - 250 | 0.96 | 2.92 |
| 4 | 17.416 | y = (2.0 × 106)x − 16531 | 1.0000 | 1 - 500 | 0.80 | 2.42 |
| 6 | 38.645 | y = (2.0 × 106)x + 26229 | 0.9997 | 1 - 500 | 2.78 | 8.44 |
| 8 | 45.640 | y = (7.0 × 106)x + 26716 | 0.9998 | 1 - 500 | 0.77 | 2.33 |
In the regression equation y = ax + b, x refers to the concentration of the compound (μg/mL), y the peak area; r2: the correlation of the equation; Rt: retention time; LOD: limit of detection; LOQ: limit of quantification.