Simultaneous qualitative and quantitative determination of 17 bioactive components in the fibrous roots of Salvia miltiorrhiza Bunge by a combinatorial Ultra performance liquid chromatography- Ultraviolet characteristic spectra analysis

•A combinatorial UPLC analysis method based on different UV characteristic spectrums.•Simultaneous determination of 17 bioactive ingredients from Salvia miltiorrhiza.•Insight into the chemical constituents of the Salvia miltiorrhiza fibrous roots.•Salvia miltiorrhiza fibrous roots are abundant with bioactive-ingredients for exploitation.