Abstract
A scheme for metal speciation based on an ion-exchange column procedure has been developed. The dissociation kinetics of metal complexes were studied using a Amberlite XAD-8 microcolumn technique, covering a time scale of measurement between 0.02 and 3 s. Application of this procedure to copper and lead complexes permits their characterization in four lability categories: labile, quasi-labile, slowly labile, and inert. This procedure has been applied to species of copper and lead in natural waters (e.g., Jarama River).
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