Element
DL (ppm)
Ag
0.003
Cu
0.1
Nb
0.01
Te
0.001
Al
10
Fe
50
Ni
0.2
Th
0.02
As
0.5
Ga
0.05
Pb
Ti
2
Au
0.0005
Ge
Pd
Tl
Ba
Hf
0.002
Pt
U
Be
Hg
Rb
V
1
Bi
In
Re
0.0001
W
Br
K
S
5
Y
0.005
Ca
La
Sb
Zn
Cd
0.004
Li
Sc
Zr
Ce
Mg
Se
B
Co
Mn
Sn
Cr
Mo
0.03
Sr
Cs
Na
Ta
Dy
Gd
Nd
Tb
Er
Ho
Pr
Tm
Eu
Lu
Sm
Yb