Cd . 71.8 mg/kgHg .1.10 mg/kgPb. 179.7 mg/kgCo . 12.3 mg/kgMn.904 mg/kgZn . 1055 mg/kgCu . 130.6 mg/kgNi .299 mg/kgAqua regia soluble contentCertified valuesCd . 72.0 mg/kgHg .858 mg/kgNi. 174 mg/kgCr . 426 mg/kgMn.296 mg/kgPb. 1063 mg/kg