Article (Scientific journals)
Models to estimate overall analytical measurements uncertainty: assumptions, comparisons and applications
Rozet, Eric; Rudaz, S.; Marini Djang'Eing'A, Roland et al.
2011In Analytica Chimica Acta, 702, p. 160-171
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Keywords :
measurement uncertainty; tolerance interval; results quality; method validation; compliance assessment
Abstract :
[en] Evaluation of analytical results reliability is of core importance as crucial decisions are taken with them. From the various methodologies to evaluate the fitness of purpose of analytical methods, overall measurement uncertainty estimation is more and more applied. Overall measurement uncertainty allows to combine simultaneously the remaining systematic influences to the random sources of uncertainty and allows assessing the reliability of results generated by analytical methods. However there are various interpretations on how to estimate overall measurement uncertainty, and thus various models for estimating it. Each model together with its assumptions has great impacts on the risks to abusively declare that analytical methods are suitable for their intended purpose. This review paper aims at i) summarizing the various models used to estimate overall measurement uncertainty, ii) provide their pros and cons, iii) review the main areas of application and iv) as a conclusion provide some recommendations when evaluating overall measurement uncertainty.
Disciplines :
Pharmacy, pharmacology & toxicology
Author, co-author :
Rozet, Eric ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Rudaz, S.
Marini Djang'Eing'A, Roland ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Ziemons, Eric  ;  Université de Liège - ULiège > Département de pharmacie > Département de pharmacie
Boulanger, Bruno ;  Université de Liège - ULiège > Département de pharmacie > Analyse des médicaments
Hubert, Philippe  ;  Université de Liège - ULiège > Département de pharmacie > Chimie analytique
Language :
English
Title :
Models to estimate overall analytical measurements uncertainty: assumptions, comparisons and applications
Publication date :
2011
Journal title :
Analytica Chimica Acta
ISSN :
0003-2670
eISSN :
1873-4324
Publisher :
Elsevier, Amsterdam, Netherlands
Volume :
702
Pages :
160-171
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 June 2011

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