Pharmacokinetic Effects of l-Tetrahydropalmatine on Ketamine in Rat Plasma by Ultraperformance Liquid Chromatography Tandem Mass Spectrometry

Figure 3

Representative ultraperformance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) chromatograms: (a) blank plasma and (b) a rat plasma sample after intragastric administration of (A) L-tetrahydropalmatine (L-THP), (B) ketamine (KET), and (C) norketamine (NK).

(a)

(b)