Membrane Technology and Dynamic Response of Ion-Selective Liquid-Membrane Electrodes


In order to study the parameters affecting the dynamic response behavior of neutral-carrier-based liquid-membrane electrodes, the potential response vs time curves of Na+-, Ca2+-, and Mg2+-selective electrodes with different membrane compositions were recorded. The effects of the lipophllicity of lonophores and plasticizers, of the presence of incorporated mobile anionic sites and of modifications of the membrane matrix were Investigated. The experimental potential-time curves were compared to fitted functions on the basis of theoretical models. © 1991, American Chemical Society. All rights reserved.

Publication Title

Analytical Chemistry