Interaction of diquat and paraquat with glutathione studied by means of charge-transfer chromatography

Tibor Cserháti, Klára Valkó

Research output: Article

3 Citations (Scopus)


The interaction of reduced and oxidized glutathiones with the herbicides diquat and paraquat was studied by charge-transfer chromatography carried out on unimpregnated cellulose layers. Diquat and paraquat interact both with reduced and oxidized glutathiones forming charge-transfer complexes. The interaction is of hydrophilic character in both cases. The formation of covalently bonded conjugates was not observed. The strength of interaction decreases in ionic (LiCl, NaCl, KCl, MgCl2 and CaCl2) environment in the case of oxidized glutathione. The charge of cation had a higher impact on the strength of interaction than that of the hydrated ion radii.

Original languageEnglish
Pages (from-to)3657-3671
Number of pages15
JournalJournal of Liquid Chromatography
Issue number20
Publication statusPublished - dec. 1 1991


ASJC Scopus subject areas

  • Molecular Medicine

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