Determination of 25-OH-PPD in rat plasma by high-performance liquid chromatography-mass spectrometry and its application in rat pharmacokinetic studies.


A sensitive and specific liquid chromatography/tandem mass spectrometry (LC/MS/MS) method was developed for the investigation of the pharmacokinetics of 20(R)-dammarane-3beta,12beta,20,25-tetrol (25-OH-PPD) in rat. Ginsenoside Rh(2) was employed as an internal standard. The plasma samples were pretreated by liquid-liquid extraction and analyzed using LC/MS… (More)


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