Ion-pair reversed-phase high-performance liquid chromatography for trace metal preconcentration followed by ion-interaction chromatography

Corrado Sarzanini, Giovanni Sacchero, Maurizio Aceto, Ornella Abollino, Edoardo Mentasti

Research output: Contribution to journalArticlepeer-review

Abstract

Ion-interaction chromatography of Plasmocorinth B (a disulphonated azo dye) complexes of Co(III), Cu(II), Fe(III), Ga(III), In(III), Ni(II), V(V) and Zr(IV) was studied. The behaviour of two different reversed-phase C18 columns (5 and 10 μm) was compared and an on-line enrichment procedure was developed following the optimization of eluent (pH, ligand concentration, ionic strength and organic modifier). The described technique, applied to the analysis of metal ions at μg/1 levels in natural waters, gave satisfactory precision and accuracy in comparison with inductively coupled plasma atomic emission spectroscopic results.

Original languageEnglish
Pages (from-to)127-134
Number of pages8
JournalJournal of Chromatography A
Volume640
Issue number1-2
DOIs
Publication statusPublished - 25 Jun 1993
Externally publishedYes

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