Fig. 1
Representative HPLC-DAD chromatogram (at 279 nm) of the chemical standard of harpagoside (a), cinnamic acid (b) and YHQ formula (c)
Fig. 1 | BMC Complementary Medicine and Therapies
Representative HPLC-DAD chromatogram (at 279 nm) of the chemical standard of harpagoside (a), cinnamic acid (b) and YHQ formula (c)