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Notes: (A) A blank sample detected with GA channel. (B) A blank sample detected with IS channel. (C) A blank sample spiked with GA. (D) A blank sample spiked with IS. (E) A random sample after administration of GA. (F) A random sample after administration of GA spiked with IS
Abbreviations: LC-MS/MS, high-performance liquid chromatography-tandem mass spectrometry; GA, glycyrrhetinic acid; IS, ursolic acid.
