| abstract |
An ion-selective electrode including a water-impermeable, non-conductive substrate; an electrically conductive layer including a metal/metal salt mixture supported on a surface of the substrate; a hydrophobic, conductive intermediate layer in contact with the metal/metal salt layer and including a salt having suitable ionic mobility such that an electrode potential is rapidly established; a layer including an ion-specific ligand in contact with the intermediate layer; and a water-impermeable barrier layer which overlays the layer including the ion-specific ligand such that a portion of this layer is uncovered, and a method for preparing same, is described. The present ion-selective electrode permits rapid, reproducible measurements of ion concentrations to be made without requiring electrode calibration and in the absence of liquid electrolytes. |