Determination of Unbiased Selectivity Coefficients of Neutral Carrier-Based Cation-Selective Electrodes

摘要

A new procedure for the determination of selectivity coefficients of neutral carrier-based cation-selective elec- trodes is established that avoids exposure to the preferred ion prior to the measurement of discriminated ions. The method is ,therefore, unbiased by the presence of pre- ferred ions in the membrane that otherwise could mask the response to discriminated ion solutions. It is gener- ally applicable as long as a series of considerations are met mad can only be applied once for a given membrane.