FAAS Determination of Au and Pd After Selective Preconcentration on Ethylenediamine Silica Material Prepared By the Sol-Gel Method

Abstract

The recoveries for Au(111) and Pd(II) ions under optimum preconcentration conditions were 99 +/- 2 and 98 +/- 2% at the 95% confidence level, respectively. The analytical detection limits of Au and Pd were 0.20 and 0.21 mu g L-1, respectively. The presented method was validated by the analysis of certified reference platinum ore (SARM7B). The obtained results agreed with the certified values.