THE SELENIUM DETERMINATION IN LLAMA HAIR BY HYDRIDE GENERATION AAS

The aim of the work was to develop a method for the assessment of selenium in alpaca hair. We optimized a cleaning procedure of the hair and sample processing (mineralization, evaporation, reduction) before measurement. Selenium was measured by Hydride Generation Atomic Absorption Spectroscopy technique (HG-AAS). We have found an average concentration of selenium in white hair 1289.13 +/- 111.33 mu g/kg and in brown hair 661.71 +/- 43.56 mu g/kg. The relative standard deviations (RSD) were 8.63% for white hair and 6.58% for brown hair.