Removal of Gallium Carrier at Pre-Atomizing Stage for Minimizing Background Absorption in the AAS Determination of Cadmium

Abstract

Enrichment techniques are often required prior to use of instrumental determination methods, to improve the accuracy and precision of analytical results.

Determination of Cadmium in Spring Water by Graphite-Furnace Atomic Absorption Spectrometry after Coprecipitation with Ytterbium Hydroxide

“…To eliminate this background absorption, therefore, the volatilization of indium and gallium as bromide 12,15 and chloride, 17 respectively, during the ashing stage was tried. For indium, the use of a minimal amount of indium 13,14 was also tried for a coprecipitation procedure.…”