元素

基线值(mg/kg)

回归方程

R²

As

7.48

As = 4.198 + 0.907 Fe

0.11

Cd

0.19

Cd = 0.049 + 0.039 Fe

0.04

Cr

82.06

Cr = 14.23 + 18.74 Fe

0.60

Cu

33.03

Cu = 17.06 + 4.41 Fe

0.05

Hg

0.18

Hg = 0.10 + 0.021 Fe

0.02

Ni

35.18

Ni = −2.70 + 10.462 Fe

0.68

Pb

31.27

Pb = 25.78 + 1.52 Fe

0.05

Zn

94.54

Zn = 42.78 + 14.30 Fe

0.19