Estimation of method accuracy
Validation of quantitative analytical methods by means of the accuracy profile
Article REF: P224 V2
Estimation of method accuracy
Validation of quantitative analytical methods by means of the accuracy profile

Author : Max FEINBERG

Publication date: December 10, 2012, Review date: May 23, 2023 | Lire en français

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4. Estimation of method accuracy

4.1 Modes of in-tune expression

If we pose :

  • X the reference value for a sample (see 4.2 for details of how this can be set);

  • Z is the average of repeated measurements on the same sample,

trueness can be expressed in many different ways. The three parameters presented here actually measure inaccuracy:

  • absolute bias :

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