Certified values

Measured values

RE

DL

Element

Mean concentration

SD

Mean concentration

SD

%

mg/kg

mg/kg (n = 9)

Cr

1.1

0.20

1.05

0.06

95

0.05

Ni

1.9

0.20

2.02

0.16

106

0.04

Cu

7.6

0.20

7.20

0.36

95

0.02

Zn

158

2.00

166

8

105

0.02

Hg

0.28

0.01

0.26

0.02

93

0.05

Pb

2.1

0.30

2.05

0.08

97

0.03