Pair se21-22 | concentration, ng/ul | measured, ng/ul | average recovery, % | CV, % |
| 0.02 | 0.022279742 | 111.4 | 0.929436 |
| 0.005 | 0.00491326 | 98.3 | 1.4093 |
| 0.00125 | 0.001022459 | 81.8 | 3.995766 |