Abstract
THE absorption of ionized iron in humans is influenced by gastric acidity1–3. Ferric ions in solution usually form complex mixtures in which the metal is co-ordinated to a number of hydroxyl ions and in some conditions there is a high degree of polymerization4. Ferrous ions do not undergo such marked changes but tend to be oxidized to ferric forms when the pH approaches neutrality4. Filtration on ‘Sephadex’ gel has been used in this laboratory to examine the behaviour of iron salts at different pHs and after mixing with gastric juice.
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References
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JACOBS, A. Effect of Gastric Juice and pH on Inorganic Iron in Solution. Nature 216, 707–708 (1967). https://doi.org/10.1038/216707a0
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DOI: https://doi.org/10.1038/216707a0
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