Fig. 2.
Identification of Rhein in the brain tissue of a CCI rat by Ultra-high Performance Liquid Chromatography with tandem mass spectrometry (UPLC-MS/MS) analysis. Representative MRM chromatograms of Rhein in brain sample. a Brain sample detection at 1 h after intragastric administration of Rhubarb (12 g/kg); (b) Blank brain tissue spiked with reference Rhein