Lithium Ion Association with Sodium Phytate and the Effects on the Conformational Equilibria. Implications in the Physiological Effects of Lithium
作者:
E.T. Champagne,
J.W. Robinson,
R.J. Gale,
M.A. Nauman,
R.M. Rao,
J.A. Liuzzo,
期刊:
Analytical Letters
(Taylor Available online 1985)
卷期:
Volume 18,
issue 19
页码: 2421-2443
ISSN:0003-2719
年代: 1985
DOI:10.1080/00032718508082582
出版商: Taylor & Francis Group
关键词: sodium phytate;lithium ion;potassium ion;31P nuclear magnetic resonance
数据来源: Taylor
摘要:
31P NMR was employed to examine the solution interactions of lithium and potassium ions with sodium phytate. The phytate molecular conformation was found to be pH and concentration dependent. The conformational equilibria of sodium phytate in aqueous solution was not affected by the addition of potassium ions, however, it was influenced by added lithium ions and was dependent on lithium ion concentration. Furthesmore, the phytate molecule showed some selectivity for lithium ion association over potassium and sodium ions. Possible implications in the physiological effects of lithium are discussed.
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