Table 3.

The eigenvalues of the five components (i-propanol concentration).

Component	Eigenvalue	Difference	Variability (%)	Cumulative (%)
1	4.830	4.671	96.609	96.609
2	0.159	0.153	3.175	99.784
3	0.006	0.002	0.123	99.907
4	0.004	0.003	0.071	99.978
5	0.001	-	0.022	100.000