UNCERTAINTY EVALUATION FROM DEVELOPED VALIDATION STUDIES. QUALITATIVE AND QUANTITATIVE ANALYSIS OF ETHANOL IN BLOOD BY HEADSPACE/GAS CHROMATOGRAPHY- FI D.

Abstract

A laboratory performing testing shall evaluate measurement uncertainty. A procedures that enable the use of all the measurand as a components contributions to measurement uncertainty of the developed method are useful for establishing a procedure for evaluation of measurement uncertainty. In the present study a guideline aimed at illustrate how the techniques use for evaluating uncertainty, can be applied to some typical chemical analyses was developed. The measurands contributing to measurement uncertainty were specified. All major uncertainty sources, taking into account all sources of error, of the developed method using cause and effect diagram were identified. The individual components of uncertainty were identified, combined them and quantified. The importance of proposed method is summarized simplified evaluation of measurement uncertainty, minimized and reduced the influence of random errors and increase the reliability of analytical method results.