Quality Assessment of Different Species and Differently Prepared Slices of Zedoray Rhizome by High-Performance Liquid Chromatography and Colorimeter with the Aid of Chemometrics

Figure 2

Representative chromatograms of standard substances (a) and samples (b, c) at 210 nm and 415 nm. Peaks 1∼12 refer to curcumenol, curzerene, curdione, isourecumenol, furanodienon, curcumol, germacrone, furanodiene, β-elemene, bisdemethoxycurcumin, demethoxycurcumin, and curcumin, respectively.

(a)

(b)

(c)