Determination of Some Trace Elements in High-Purity Aluminium, Zinc and Commercial Steel by AAS After Preconcentration on Amberlite XAD-1180 Resin

摘要

The determination of trace metals, e.g. Bi, Cd, Pb, in high-purity aluminium, zinc and commercial steel by flame or graphite furnace atomic absorption spectrometry following their preconcentrations as iodo complexes on XAD-1180 resin by means of a short column system is described. The recoveries are quantitative (Js95%). The relative standard deviations varies between 6% and 10%. The relative errors are less than 8% in a concentration range of 1 x 10-3 - 4x 10-5%. Detection limits for flame AAS and GFAAS were in the ranges of 0.002-0.110 ug/ml and 0.0003-0.004 ug/ml or in the ranges of 0.08-40 ug/g and 0.012-0.16 ug/g with respect to the solid samples, respectively.