In this paper,based on the determination method of Cd in soil by ICP-MS,the uncertainty is calculated and evaluated according to the verification regulations of JJF 1059.1-2012.The results showed that the Cd content of the soil sample was(0.608±0.048)mg/kg(k=2).Pretreatment sample,standard solution and preparation were the main contribution components,accounting for 32.1％and 26.9％respectively.Therefore,the error can be re-duced by standard operation,and the precision and accuracy of test results can be improved.
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