FIGURE 1.

Chromatographic fingerprints of the dietary herbal formula of GLZ by using HPLC. Bioactive marker substances were as follows for (a) Guizhi: (1) coumarin, (2) cinnamic acid, (3) cinnamaldehyde, and (4) 2‐methoxycinnamaldehyde; and (b) Li‐Zhong Tang: (1) liquiritin, (2) ginsenosides Rg1 + Re, (3) ginsenoside Rb1, (4) glycyrrhizin, (5) 6‐gingerol, (6) atractylenolide III, and (7) 6‐shogaol. Bioactive marker substances of GLZ ingredients were qualitatively determined within 70 min under the selected Liquid chromatography–mass spectrometry (LC/MS) condition. AU, arbitrary perfusion units