Rapid Quality Identification of Decoction Pieces of Crude and Processed Corydalis Rhizoma by Near-Infrared Spectroscopy Coupled with Chemometrics

Table 10

External validation in quantitative model.

Components	R^2	RMSEP (%)
Protopine	0.9921	0.1992
Palmatine chloride	0.9992	0.7564
Berberine	0.9986	0.1887
Dehydrocorydaline	0.9990	0.3481
Tetrahydropalmatine	0.9948	0.1416
Tetrahydroberberine	0.9931	0.2480
Corydaline	0.9995	0.1823