Determination of free metal concentrations with AGNES

Authors

  • David Aguilar Universitat de Lleida. Departament de Química
  • Josep Galceran Universitat de Lleida. Departament de Química
  • Encarna Companys Universitat de Lleida. Departament de Química
  • Jaume Puy Universitat de Lleida. Departament de Química

Keywords:

AGNES, free metal, speciation.

Abstract

AGNES (absence of gradients and Nernstian equilibrium stripping) is a new electroanalytical technique developed for the determination of free metal ion concentrations. In this study, the theoretical principles of the technique will be presented as well as the appropriate methodology needed for the study of aqueous samples. AGNES has been applied in both synthetic systems (analysis of humic acids, study of ZnO nanoparticles dissolution) and in natural samples (determination of free Zn in wines and sea and river waters).

Keywords: AGNES, free metal, speciation.

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Author Biography

David Aguilar, Universitat de Lleida. Departament de Química



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Issue

No. 13 (2014)

Section

Articles

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