Table 1:
Comparison of the Pb analytical results of the analysed certified reference materials (CRM), MESS-3 and PACS-2.
CRM
Certified value (μg g
-1
)
Measured value (μg g
-1
)
N
MESS-3
21.1±0.7
25.4±6.9
5
PACS-2
191.0±17.0
192.8±5.3
5