Evaluation of Heavy Metals Contamination from Environment to Food Matrix by TXRF: The Case of Rice and Rice Husk

Table 4

Rotated component matrix for soil samples.

(a)

Variables	Rotated factor
	1	2	3
Al	0.4877	0.3792	0.7279
K	0.5859	−0.0676	0.5477
Ca	0.0419	0.9249	0.1358
Ti	0.9527	0.1259	0.0972
V	0.9167	0.0068	0.3339
Cr	0.9421	0.1997	0.203
Mn	0.8834	0.0792	0.2768
Fe	0.8929	0.3231	0.0015
Ni	0.9423	−0.0077	0.2811
Cu	0.9715	0.1256	0.1389
Zn	0.6599	0.5904	−0.1872
As	0.8862	−0.04	0.29
Rb	0.0402	0.147	0.9675
Sr	0.0761	0.9325	0.2809
Ba	0.4065	0.5243	0.6689
Pb	0.9163	0.287	0.1481
Bi	0.8439	0.3457	0.2535

(b)

Variance explained by each factor
Factor	Variance	Percent	Cum. percent
Factor 1	9.5731	56.313	56.313
Factor 2	2.9045	17.085	73.398
Factor 3	2.8535	16.785	90.183