Chemical structure of ferulic acid (A) and docetaxel (B) (I.S.) were shown here. The UPLC-MS/MS spectrum was acquired by the product ion scan mode of ferulic acid and docetaxel. (C) Ferulic acid standard solutions in rat plasma were injected to UPLC-MS/MS. Concentrations of standard solution was from 2.5 to 4000 ng/ml. The corresponding peak areas to the concentration were shown.

Figure 1: Chemical structures and production scan spectra of ferulic acid and docetaxel.