| Recovery level |
Ethinyloestradiol With Placebo |
| Amount added (mg / ppm) |
Amount recovered (mg / ppm) |
% Recovery |
Average recovery |
% RSD |
| 70% |
0.0835 |
0.0831 |
99.5 |
99.7 |
0.4 |
| 0.0835 |
0.0836 |
100.1 |
| 0.0835 |
0.0830 |
99.4 |
| 100% |
0.1192 |
0.1209 |
101.4 |
101.5 |
0.2 |
| 0.1192 |
0.1210 |
101.5 |
| 0.1192 |
0.1212 |
101.7 |
| 130% |
0.1550 |
0.1562 |
100.8 |
101.2 |
0.3 |
| 0.1550 |
0.1568 |
101.2 |
| 0.1550 |
0.1573 |
101.5 |
| Overall |
100.8 |
0.33 |
|