Table 2.
Accuracy, precision and repeatability of marker compounds at three concentration levels by UHPLC-TQ/MS.
| Analytes | Concentration (μg/ml) | Accuracy (%) | Precision (RSD, %) |
Repeatability (RSD, %) | |
|---|---|---|---|---|---|
| Intra-day | Inter-day | ||||
| SaA | 576.0 | 96.8 | 3.7 | 2.6 | 2.3 |
| 96.0 | 99.3 | 4.1 | 1.3 | 1.5 | |
| 48.0 | 102.2 | 3.0 | 4.2 | 1.7 | |
| SaB | 824.0 | 99.9 | 2.2 | 1.1 | 1.0 |
| 137.3 | 97.5 | 3.3 | 3.4 | 2.4 | |
| 68.7 | 98.8 | 1.9 | 3.6 | 3.5 | |
| RA | 247.2 | 101.1 | 1.8 | 1.4 | 2.8 |
| 41.2 | 103.2 | 2.5 | 2.5 | 2.3 | |
| 20.6 | 96.7 | 3.1 | 1.9 | 2.4 | |
| DSS | 948.0 | 98.4 | 1.3 | 2.0 | 3.6 |
| 158.0 | 99.8 | 3.6 | 2.8 | 2.7 | |
| 79.0 | 97.4 | 3.5 | 3.1 | 1.5 | |
| PA | 230.4 | 99.9 | 1.7 | 1.3 | 4.4 |
| 38.4 | 102.3 | 3.1 | 3.8 | 1.3 | |
| 19.2 | 96.4 | 2.9 | 1.5 | 3.5 | |
| CA | 13.1 | 100.8 | 1.7 | 1.2 | 4.5 |
| 2.2 | 98.3 | 3.5 | 3.3 | 2.1 | |
| 1.1 | 96.9 | 2.6 | 2.7 | 2.7 | |
| SG | 62.0 | 99.3 | 4.3 | 3.0 | 3.2 |
| 10.3 | 97.5 | 1.5 | 2.5 | 1.1 | |
| 5.2 | 103.4 | 3.8 | 1.7 | 3.0 | |