A sensitive and simple method for the simultaneous preconcentration of trace transition and heavy
metal ions is reported. The method is based on the adsorption of Cu, Fe, Pb and Zn on N,N-Diacetyl-4-
bromo-2,6-di(aminomethyl)anisole (DABDAMA) loaded on sodium dodecyl sulfate (SDS) coated alumina.
The metal content on the complexes are eluted using 6 mL of 2 mol l-1 nitric acid. The influences of
the analytical parameters including pH and sample volume were investigated. The effects of matrix ions
on the retentions of the analytes were also examined. The recoveries of analytes were generally higher
than 95% with a low RSD. The method has been successfully applied for these metals content evaluation
in samples including soil, blood and vegetable samples.
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