Design of ionophore-free H⁺-selective solvent polymeric membranes for further biomedical applications

Authors

Vasile V. Cosofret, The University of North Carolina at Chapel Hill
Ernö Lindner, The University of North Carolina at Chapel Hill
Richard P. Buck, The University of North Carolina at Chapel HillFollow
Robert P. Kusy, The University of North Carolina at Chapel HillFollow
John Q. Whitley, The University of North Carolina at Chapel Hill

Abstract

Ionophore-free H+-selective solvent polymeric membrane electrodes based on aminated poly(vinyl chloride) (PVC-NH2) are studied. Among the large number of amino-PVC derivatives, the electrodes fabricated from piperazine-modified PVC show the best analytical performances. The new pH electrodes exhibit a Nernstian response between pH 4 and pH 12, and their selectivity coefficients toward biologically interesting cations match the corresponding values of H+ electrodes based on TDDA or ETH 5294. The new membrane material offers additional prospects for ion-selective electrode fabrication with technologies used in microelectronic device development. © 1993.

Publication Title

Journal of Electroanalytical Chemistry

Recommended Citation

Cosofret, V., Lindner, E., Buck, R., Kusy, R., & Whitley, J. (1993). Design of ionophore-free H⁺-selective solvent polymeric membranes for further biomedical applications. Journal of Electroanalytical Chemistry, 345 (1-2), 169-181. https://doi.org/10.1016/0022-0728(93)80477-Y