Determination of Trace Elements in Corydalis conspersa and Corydalis linarioides by ICP-AES

Table 6

Eigenvalue and variance contribution rate of principal component analysis.

Principle component	Eigenvalue	Contribution (%)	Accumulating contribution (%)
1	10.580	62.236	62.236
2	2.117	12.454	74.691
3	1.321	7.772	82.463
4	0.919	5.405	87.868
5	0.805	4.738	92.606
6	0.535	3.146	95.752
7	0.343	2.017	97.769
8	0.167	0.983	98.753
9	0.087	0.512	99.265
10	0.054	0.319	99.583
11	0.032	0.188	99.771
12	0.021	0.121	99.892
13	0.012	0.072	99.964
14	0.003	0.021	99.984
15	0.002	0.011	99.996
16	0.001	0.003	99.999
17	0.000	0.001	100.000