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
Table 9: Recovery data for Ethinyloestradiol.