Recovery of steroids from breast cyst fluid after purification by HPLC
| Estradiol | Testosterone | Estrone | Androstenedione | Progesterone | |
|---|---|---|---|---|---|
| BCF (pg/mL) | 344 | 4,263 | 2,525 | 30,673 | 8,424 |
| Amount of steroid added (pg) | 276 | 1,696 | 1,987 | 14,801 | 7,768 |
| Sum BCF + standard (pg/mL) | 620 | 5,959 | 4,512 | 45,474 | 16,192 |
| Assayed spiked BCF (pg/mL) | 695 | 6,376 | 4,243 | 42,930 | 14,944 |
| Difference from spiked | 10.8% | 6.5% | 6.3% | −5.9% | −8.4% |