Table 2.
Linear regression data, precision, repeatability, stability and recovery of 4 analytes
| Analytes | Linear regression | Linear range (μg/mL) | R2 | Precision (RSD,%) | Repeatability (RSD,%,n = 6) | Stability (RSD,%,n = 6) | LOD (ng/ml) | LOQ (ng/ml) | The average recovery (%) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Intra-day (n = 6) | Inter-day (n = 6) | Mean | RSD | ||||||||
| Triptolide | Y 1 = 282544X 1-2417 | 59 l.0 ~ 3540 | 0.9998 | 2.95 | 1.22 | 2.53 | 2.83 | 1.36 | 4.12 | 96.49 | 1.70 |
| Triptophenolide | Y 2 = 853507X 2-2479 | 10.9 ~ 218 | 0.9999 | 3.55 | 4.03 | 3.04 | 3.40 | 0.97 | 2.91 | 100.28 | 2.42 |
| Demethylzeylasteral | Y 3 = 12756962X 3-560868 | 92.8 ~ 3612 | 0.9998 | 0.35 | 1.01 | 0.52 | 0.69 | 0.82 | 2.45 | 96.61 | 1.78 |
| Celastrol | Y 4 = 12617709X 4-804041 | 40.l ~ 1224 | 0.9999 | 0.27 | 0.642 | 0.86 | 0.75 | 1.67 | 5.01 | 96.95 | 0.27 |