USE OF ETHANOLAMINE IN ATOMIC-ABSORPTION SPECTROMETRIC INVESTIGATION AND FLOTATION OF SILVER

In the determination of silver by atomic absorption spectrometry (AAS) , ethanolamine (EA) was used to eliminate the interfering effects of s ome organic and inorganic compounds. The role of EA in controlling int erferences at different flame zones was examined. Also, EA was success fully used to float 100% Ag at pH 0.5-1.5 using oleic acid (HOL) as a surfactant. The releasing action of EA may be suggested as a result of the decomposition of Ag-EA system and also excess of EA in the flame giving reducing fragments which react with the oxidizing species. More over, estimation of silver in synthetic mixtures was elucidated.