abstract |
A potassium ion-specific membrane includes a hydrophobic elastomeric polymer with a dielectric constant of from 4 to 13, and a potassium ion-specific carrier. The hydrophobic elastomeric polymer is preferably an organopolysiloxane polycarbonate block copolymer. The potassium ion-specific carrier is selected from the group consisting of nonactin, gramicidins, valinomycin, and mixtures thereof. |