Quality assurance criteria for assay results in the determination of barium by atomic absorption spectrometry in wastewater by Shewhart control charts
DOI:
https://doi.org/10.21754/tecnia.v23i1.64Keywords:
Assurance quality, barium, Shewhartcontrol chart, wastewaterAbstract
This paper defines the criterion of quality assurance results for the determination of barium by the method Standard Methods 3111 D - Direct Nitrous Oxide - Acetylene Flame Method by atomic absorption spectrometry, estimated for individuals Shewhart control limits for accuracy and precision parameters. The study was conducted for wastewater.
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[2] Riu, Jordi. “Gráficos de control de Shewhart”.Universitat Rovira i Virgili.
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[8] AOAC, AssocOff Anal Chem, 1993; Huber, 1999. En: AEFI, Validación de métodos analíticos, Cataluña, 2001, pp. 84.
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