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

Table 4

Diagnostics of the PCA model for differently prepared slices of Zedoray Rhizome samples.

Number of PCs	Eigenvalue	(%)
1	5.14	34.3
2	2.81	53.0
3	1.77	64.8