Effect of Crown Ethers on the Ion-Exchange Behavior of Alkaline Earth Metals. Toward Improved Ion-Exchange Methods for the Separation and Preconcentration of Radium

The effect of selected crown ethers on the uptake of alkaline earth cations by sulfonic acid and diphosphonic acid-based cation-exchange resins from hydrochloric acid media is examined. The effect observed is shown to vary with the hydrophobicity of the crown ether. Water-soluble crown ethers enhanc...

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Veröffentlicht in:	Anal. Chem 1997-08, Vol.69 (15), p.3028-3037
Hauptverfasser:	Dietz, Mark L, Chiarizia, Renato, Horwitz, E. Philip, Bartsch, Richard A, Talanov, Vladimir
Format:	Artikel
Sprache:	eng
Schlagworte:	Acids ALKALINE EARTH METALS Analytical chemistry ATOMIC AND MOLECULAR PHYSICS CALCIUM IONS CATIONS Chemistry Chromatographic methods and physical methods associated with chromatography CROWN ETHERS Exact sciences and technology FUNCTIONALS HYDROCHLORIC ACID ION EXCHANGE Ions Metals Other chromatographic methods RADIUM RESINS SORPTION SULFONIC ACIDS
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