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 |