Simple and Rapid Determination of Trace Amounts of Gold(III), Palladium(II), and Platinum(IV) in Industrial Waste Solutions after Recovery of Noble Metals by Combined Use of GFAAS and Anion-Exchange Separation

Abstract

A simple and rapid method for the analysis of trace amounts of gold(III), palladium(II), and platinum(IV) by the combined use of graphite furnace atomic absorption spectrometry and anion-exchange separation was proposed, and successfully applied to the rapid determination of metals in industrial waste solutions obtained from the final process of noble-metal recovery factories, because noble metals can be selectively and quantitatively separated to a high degree by using a small column containing only a 0.7 g-portion of a common anion-exchange resin and a dilute thiourea solution.