Short Communication
Cation selectivity of liquid-membrane electrodes based on macrocyclic lactones and lactonelactams

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Abstract

Selectivity coefficients are reported for liquid membranes containing 27 macrocyclic lactones and lactonelactams with respect to alkali and alkaline-earth metal ions. It is shown that introduction of amide and ester groups into cyclic polyethers can modify the cation selectivity over a wide range. The results indicate the possibility of obtaining various highly selective membrane electrodes based on these neutral macroheterocyclic compounds.

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