| | 1 | Author
| Berthold Kiefer, Helmut Sapper, WolfgangL. Ohm Ann | Requires cookie* | | | Title
| The Influence of Amino Acid Ligands and Vitamin C on the Reduction Potential of Fe(III): Polarographie and Electron Spin Resonance Investigations  | | | | Abstract
| The pH dependence o f Fe(III)-am ino acid com plexes has been studied polarographically and by means o f ESR spectroscopy. It could be shown that, at least, two com plexes exist: one with a low m olecular weight, ESR detectable at acid pH. and one with a high molecular w eight at alkaline pH, ESR non detectable. The half wave potential o f Fe (III) is lowered by am ino acid ligands. The redox interaction o f the Fe(III)-amino acid com plexes with vitam in C results in a decrease o f the ascorbyl radical concentration. Ascorbic acid also forms a com plex with Fe(III) as in dicated by a polarographic half wave potential near -0.55 V vs. S.C.E. at pH 7. | | | |
Reference
| Z. Naturforsch. 39c, 102—106 (1984); received September 22 1983 | | | |
Published
| 1984 | | | |
Keywords
| Ferrous Ions Ascorbic Acid, Redox-Potential, Polarography, ESR -Spectroscopy | | | |
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| default:Reihe_C/39/ZNC-1984-39c-0102.pdf | | | | Identifier
| ZNC-1984-39c-0102 | | | | Volume
| 39 | |
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