Liquid chromatography tandem-mass spectrometry quantitative liquid phase analysis conditions.
At 0.25 h before and 0.5, 1, 1.5, 2, 4, 6, 8, 10, 12, 14, 21, 24, 27, 30, 33, 36, 48 and 72 h after administration, 4 mL of venous blood was drawn into a blood collection tube containing EDTA-K