Identification and characterization of quinoline alkaloids from the root bark of Dictamnus dasycarpus and their metabolites in rat plasma, urine and feces by UPLC/Qtrap-MS and UPLC/Q-TOF-MS

•The quinoline alkaloids profile of BXP and metabolites were characterized by LC–MS.•A stepwise manner based on DFIs, in-house database, ClogP and μ was proposed.•A total of 73 quinoline alkaloids were characterized in BXP extract.•57 prototypes and 41 metabolites were characterized in rat bio-samples.