Jump to main content
Jump to site search

Issue 6, 2004
Previous Article Next Article

Determination of Tl(I) and Tl(III) by IC-ICP-MS and application to Tl speciation analysis in the Tl hyperaccumulator plant Iberis intermedia

Author affiliations

Abstract

Speciation of thallium was investigated in a Tl hyperaccumulator plant, Iberis intermedia, by ion chromatography (IC) and size-exclusion chromatography (SEC) coupled with on-line ICP-MS detection. The leaves, stems and roots of the plant were extracted with a buffer solution (pH 6.2) containing DTPA and ammonium acetate. DTPA was used to complex unstable Tl(III) to form the stable Tl(III)–DTPA anionic complex. The two species, Tl(I) and Tl(III)–DTPA, were separated by using two separation mechanisms, anion exchange chromatography and SEC, with 100 mmol L−1 ammonium acetate (pH 6.2) as eluant. The anion exchange chromatograms indicated that the chemical form of Tl present in extracts of both fresh and freeze-dried samples of the roots, stems and leaves is predominantly Tl(I), and this was confirmed by size-exclusion chromatography and electrospray mass spectromety.

Back to tab navigation

Publication details

The article was received on 14 Oct 2003, accepted on 02 Mar 2004 and first published on 17 May 2004


Article type: Paper
DOI: 10.1039/B312603J
Citation: J. Anal. At. Spectrom., 2004,19, 757-761
  •   Request permissions

    Determination of Tl(I) and Tl(III) by IC-ICP-MS and application to Tl speciation analysis in the Tl hyperaccumulator plant Iberis intermedia

    A. Nolan, D. Schaumlöffel, E. Lombi, L. Ouerdane, R. Łobiński and M. McLaughlin, J. Anal. At. Spectrom., 2004, 19, 757
    DOI: 10.1039/B312603J

Search articles by author

Spotlight

Advertisements