Open Access

Table 5

Result of an accuracy study [17].

Number (n) 10
Mean (d) 0.989
Standard deviation (Sd) 0.072
Concentration of reference material (C) (μg/g) 1.19
Uncertainty of reference materials 0.18
Relative error (%) 16.879
Accuracy (%) 83.121
Accuracy error 1.036

Relative error % = greatest possible error/measured value; , with:  = mean of test results obtained for reference sample, m = “true” value given for reference sample; Accuracy error =  , with: : mean of measures, V: true value.

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