Hispidulin has been used as a calibration standard:
- in high-performance liquid chromatography (HPLC) for quantification of Clerodendrum petasites flavonoids
- in liquid chromatography/electrospray ionization mass spectrometry (LC/ESI-MS) analysis
- in reverse-phase high-performance liquid chromatography with a diode-array detector (HPLC-DAD) and high-performance thin-layer chromatography (HPTLC)