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Journal of Analytical Methods in Chemistry
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Journal of Analytical Methods in Chemistry
/
2021
/
Article
/
Tab 2
/
Research Article
Multielement Analysis of Pakchoi (
Brassica rapa
L. ssp.
chinensis
) by ICP-MS and Their Classification according to Different Small Geographical Origins
Table 2
Principal component analysis summary.
PC
R
2
X
(Cum)
Q
2
X
(Cum)
Eigenvalues
1
0.2883
0.2582
12.1088
2
0.4993
0.6172
8.8615
3
0.6122
0.8371
4.7413
4
0.7137
0.9498
4.2656
5
0.7726
0.9875
2.4729
6
0.8161
0.9975
1.8260
7
0.8486
0.9996
1.3642
8
0.8754
0.9999
1.1253
9
0.8978
1.0000
0.9402
10
0.9112
1.0000
0.5660