Table 3: Comparison of the results of the ammonium-EDTA and acetic acid extractions of CRM 483 with certified and indicative values [31]. The number of replicates is given between brackets. Concentrations in mg/kg.

CRM483Certified values [31]

Ammonium-EDTAAcetic acid
Cd
Cr
Cu
Ni
Pb
Zn

CRM483This work

Ammonium-EDTA (6)Acetic acid (6)
Cd
Cr
Cu
Ni
Pb
Zn