Combined Liquid Chromatography–Tandem Mass Spectrometry Analysis of Progesterone Metabolites
Fig 5
Representative calibration curves in matrix.
A) (20S)-pregn-4-ene-3α,20-diol (r = 0.9985, y = 0.00015x). B) (20S)-5α-pregnane-3α,20-diol ((r = 0.9997, y = 0.00015). Curves are constructed out of three measurements for each concentration.