Figure 2From: Rapid determination of natural steroidal hormones in saliva for the clinical diagnosesGC-MS chromatogram after the extraction and derivatization of blank and real saliva sample. The concentrations of estradiol (m/z 414), progesterone (m/z 458) and testosterone (m/z 432) were 0.008 μg/L, 0.013 μg/L and 0.035 μg/L, respectively.Back to article page