Table 6.
Validation parameters of the HPLC-DAD analysis (n = 6).
| Compound | Precision Intra-Day (CV %) |
Precision Inter-Day (CV %) |
Regression Equation | R2
(n = 6) |
Linear Range (mg mL−1) |
LOD (µg L−1) |
LOQ (µg L−1) |
Recovery (%) |
|---|---|---|---|---|---|---|---|---|
| Salidroside | 1.17 | 1.84 | y = 231.6x + 1946.7 | 0.9999 | 3.9–3920.0 | 10.83 | 36.10 | 105.1 |
| Tyrosol | 1.22 | 1.74 | y = 604.3x − 13205.1 | 0.9997 | 3.8–3800.0 | 31.73 | 105.78 | 92.5 |
| Rosarin | 0.95 | 1.32 | y = 618.3x − 10440.9 | 0.9998 | 2.0–1960.0 | 7.31 | 24.37 | 98.0 |
| Rosavin | 0.80 | 1.22 | y = 406.2x − 4640.1 | 0.9999 | 3.9–3872.0 | 7.69 | 25.65 | 95.4 |
| Rosin | 0.75 | 1.15 | y = 480.6x − 11104.3 | 0.9996 | 2.9–1980.0 | 17.57 | 58.57 | 96.2 |
| Trans-cinnamic alcohol | 0.97 | 1.21 | y = 7740.3x − 28673.2 | 0.9994 | 11.7–880.3 | 1.26 | 4.21 | 97.4 |