Compound | Concentration (ng/mL) | Freeze-thaw stability (RSD/%) | Long-term stability (RSD/%) | Short-term stability (RSD/%) | Post-preparation stability (RSD/%) |
---|---|---|---|---|---|
AA I | 1.83 | 1.1 | 0.28 | 0.58 | 0.65 |
457.5 | 10.3 | 6.9 | 8.7 | 2.0 | |
1830 | 12.9 | 7.6 | 6.5 | 4.5 | |
AA II | 8.00 | 1.3 | 1.2 | 5.0 | 4.4 |
400 | 10.2 | 8.2 | 5.5 | 3.6 | |
3200 | 14.3 | 7.3 | 9.3 | 6.5 | |
AA C | 186.3 | 5.8 | 8.3 | 14.0 | 9.2 |
372.5 | 7.3 | 9.9 | 12.6 | 8.5 | |
2980 | 12.9 | 12.0 | 13.0 | 7.0 | |
AA D | 36.8 | 4.8 | 5.2 | 5.0 | 4.5 |
460 | 8.4 | 2.5 | 11.7 | 3.1 | |
3680 | 14.3 | 12.7 | 8.6 | 2.8 | |
7-OH AA I | 82.0 | 6.2 | 2.0 | 7.1 | 5.1 |
410 | 12.3 | 6.4 | 11.8 | 4.2 | |
3280 | 13.4 | 11.1 | 9.1 | 6.7 |