Figure 1.

The expression levels of chlorogenic acid and paeonol were used as quality controls of JYG using HPLC. As shown in Figure 1, chlorogenic acid and paeonol were detected in positive control and JY samples, but no expression was found in the negative control (a). Herbs and 3 different batches of JYG products were quantified using thin-layer chromatography. ((b) (1) positive control, (2) herb, (3), (4), and (5) tests of JYG, and (6) negative control). Quality control of JYG by HPLC method.