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.
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