Table 4.
Calibration curves, linearity, limits of detection (LODs), and limits of quantification (LOQs) of the method used for assessing the 11 analytes.
| No. | Compounds | Calibration curve | R2 | Linearity | LOD (ng) | LOQ (ng) | Precision | Stability | Repeatability | Average |
|---|---|---|---|---|---|---|---|---|---|---|
| (ng) | RSD% | RSD% | RSD% | recovery (%) | ||||||
| 1 | Schaftoside | Y = 0.52X – 8.68 | 0.999 | 5.53–548.64 | 0.31 | 1.03 | 0.64 | 0.68 | 0.77 | 97.69 |
| 2 | Isoschaftoside | Y = 0.53X – 1.33 | 0.999 | 4.79–475.20 | 0.37 | 1.25 | 0.65 | 0.66 | 0.70 | 98.32 |
| 3 | 2,4,7-Trihydroxy-9,10-dihydrophenanthrene | Y = 0.39X + 1.02 | 0.999 | 2.93–237.42 | 1.12 | 0.38 | 0.39 | 0.31 | 0.41 | 91.25 |
| 4 | Dihydroresveratrol | Y = 0.17X + 0.38 | 1 | 1.128–95.44 | 0.04 | 0.15 | 0.55 | 0.55 | 0.44 | 94.83 |
| 5 | Coelonin | Y = 0.14X + 0.70 | 0.999 | 1.07–86.33 | 0.06 | 0.21 | 0.76 | 0.55 | 0.72 | 92.45 |
| 5 | Lusianthridin | Y = 0.21X – 3.72 | 0.999 | 5.08–181.44 | 0.15 | 0.49 | 0.65 | 0.43 | 0.42 | 96.78 |
| 6 | Nudol | Y = 0.14X + 0.03 | 1 | 0.93–75.09 | 0.16 | 0.53 | 0.51 | 0.50 | 0.44 | 90.65 |
| 7 | Gigantol | Y = 0.63X – 0.05 | 1 | 8.84–877.39 | 0.27 | 0.91 | 0.28 | 0.16 | 0.20 | 92.55 |
| 8 | 4-Methoxy-2,5-phenanthrenediol | Y = 0.19X + 0.36 | 1 | 1.34–108.29 | 0.15 | 0.49 | 0.32 | 0.29 | 0.36 | 91.62 |
| 9 | 3-hydroxy-3,4,5-trimethoxybibenzy | Y = 0.13X + 0.07 | 1 | 0.96–77.99 | 0.07 | 0.24 | 0.73 | 0.19 | 0.37 | 93.46 |
| 10 | Erianin | Y = 0.36X + 1.79 | 0.999 | 6.13–608.40 | 0.90 | 3.00 | 1.24 | 1.30 | 0.78 | 96.68 |
| 11 | Tristin | Y = 0.85X – 4.26 | 1 | 12.26–1,216.80 | 1.68 | 5.62 | 0.79 | 0.77 | 0.98 | 99.17 |