Discrimination of Salvia miltiorrhiza Bunge from Different Geographical Locations Employing High-Performance Liquid Chromatography, Near-Infrared Fingerprinting Combined with Chemometrics

Figure 2

The peak area of 20 common peaks were compared under different extraction solvents (a), methods (b), time (c), and temperature (d).

(a)

(b)

(c)

(d)