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Post-preparative stabilities at room temperature for 24 h (n = 6).
| Concentration (ng/mL) | 1 | 2 | 3 | 4 | 5 | 6 | AVE | RE (%) |
|---|---|---|---|---|---|---|---|---|
| 11.14 | 10.8 | 11.4 | 11.4 | 11.1 | 11.5 | 11.2 | 11.2 | 0.8 |
| 557 | 600.7 | 592.4 | 603.7 | 588.7 | 621.9 | 566.9 | 595.7 | 6.9 |
| 1114 | 1135.0 | 1153.7 | 1076.2 | 1062.6 | 1152.3 | 1081.9 | 1110.3 | 3.3 |
