DETERMINATION OF TELLURIUM IN URINE BY HYDRIDE GENERATION AND GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY-COMPARATIVE STUDY

Abstract

Both graphite furnace atomic absorption spectrometry (GFAAS) and hydride generation atomic absorption spectrometry (HGAAS) were used to measure levels of tellurium in urine. In GFAAS, solvent extraction was tried. There is good agreement between the results obtained by the two techniques, except for two samples containing low Te levels. Compared with the GFAAS after solvent extraction, the advanta gesof the HGAAS are simplification of operation steps and shortening of analysis-time.