Methodology validation for evaluation of the uncertainty in the calibration curves better adjusted for second-degree polynomials

Quimica nova

Oliveira, Elcio Cruz de¹  Aguiar, Paula Fernandes de² 

[1] PETROBRAS TRANSPORTE S.A.;Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

关键词: second order calibration uncertainty;    Monte Carlo Simulation;    GUM Supplement.;   

DOI  :  10.1590/S0100-40422009000600041

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The most widespreadliterature for the evaluation of uncertainty - GUM and Eurachem - does not describeexplicitly how to deal with uncertainty of the concentration coming from non-linearcalibration curves. This work had the objective of describing and validatinga methodology, as recommended by the recent GUM Supplement approach, to evaluatethe uncertainty through polynomial models of the second order. In the uncertaintydetermination of the concentration of benzatone (C) by chromatography,it is observed that the uncertainty of measurement between the methodology proposedand Monte Carlo Simulation, does not diverge by more than 0.0005 unit, thusvalidating the model proposed for one significant digit.

【 授权许可】

CC BY