Jr. Procopio et al., MICROCOLUMN ION-EXCHANGE METHOD FOR KINETIC SPECIATION OF COPPER AND LEAD IN NATURAL-WATERS, Environmental science & technology, 31(11), 1997, pp. 3081-3085
A scheme for metal speciation based on an ion-exchange column procedur
e has been developed. The dissociation kinetics of metal complexes wer
e studied using a Amberlite XAD-8 microcolumn technique, covering a ti
me scale of measurement between 0.02 and 3 s. Application of this proc
edure to copper and lead complexes permits their characterization in f
our lability categories: labile, quasi-labile, slowly labile, and iner
t. This procedure has been applied to species of copper and lead in na
tural waters (e.g., Jarama River).