Parâmetros r e R obtidos de programa interlaboratorial: como usá-los

Química Nova

Queenie Siu Hang Chui¹  Cleide Bassani De Barros¹  Talita Daiane Da Silva¹ 

[1] ,Universidade São Francisco Laboratório de Metrologia Química Itatiba SP ,Brasil

关键词: repeatability;    reproducibility;    inter and intralaboratorial variance;   

DOI  :  10.1590/S0100-40422009000800037

来源: SciELO

【 摘 要 】

Intralaboratorial and interlaboratorial variabilities can be obtained by conducting an specially designed interlaboratory program. Using the analysis of variance technique one can calculate the r (repeatability) and R (reproducibility) indexes that can help participant laboratories to monitor their routine quality control procedures. An example is described using data obtained from an interlaboratory program where twelve laboratories determined total iron content in silicon metal sample by using flame atomic absorption spectrometry.

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