Single laboratory validation of a method for the determination of total inorganic arsenic by hydride generation atomic absorption spectrometry

摘要

The purpose of this study consists in reporting of single laboratory validation of a method for the determination of total inorganic arsenic by hydride generation atomic absorption spectrometry from natural and residual water samples. Applicability, fitness for purpose, selectivity, and sensitivity were discussed. A calibration study was realized, linear working range (0.4-4 μg · L~(-1)), detection (0.11 μg · L~(-1)), and quantification (0.38 μg · L~(-1)) limits being determined. It was also proven that the method is accurate and precise. Following the bottom-up approach measurement, uncertainty was estimated (method validation data were used).