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Research Article

Table 1

Cadmium and lead concentrations in certified reference materials, and accuracy and detection limits determined by ICP-MS analyses.

Metal Standard reference material
Detection limit mg kg−1
CRM–NIST 1640 – Trace elements in natural water
HISS-1 – Marine sediments
Dogfish muscle-DORM2
Certified value (mg L−1) Recovered value (mg L−1) Accuracy (%) Certified value (mg kg−1 dry wt) Recovered value (mg kg−1 dry wt) Accuracy (%) Certified value (mg kg−1 wet wt) Recovered value (mg kg−1 wet wt) Accuracy (%)
Cd 3.961 ± 0.072 3.848 ± 0.064 97.14 0.024 ± 0.009 0.022 ± 0.003 91.66 0.043 ± 0.008 0.042 ± 0.003 97.67 0.003
Pb 12.005 ± 0.040 11.526 ± 0.105 99.00 3.140 ± 0.04 3.008 ± 0.057 95.79 0.065 ± 0.007 0.063 ± 0.006 96.92 0.006

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