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
|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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