Potassium selective chromoionophores |
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Authors: | Ian P Danks Ian O Sutherland |
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Institution: | (1) Department of Chemistry, The University of Liverpool, P.O. Box 147, L69 3BX Liverpool, UK |
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Abstract: | The ionisable chromoionophores5 were synthesised from simple precursors. These chromoionophores extract alkali metal cations from aqueous solutions at pH > 7 into dichloromethane. The ratio of extraction coefficients for the chromoionophore5c for K+ and Na+ indicate that it has potential for use in optical fibre sensors for K+ in the presence of Na+, Mg2+ and Ca2+ at extracellular concentrations.This paper is dedicated to the memory of the late Dr C. J. Pedersen. |
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Keywords: | Chromoionophores potassium hemispherand optical fibre sensors |
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