| 摘要 |
A solid state electrode for use in determining ion concentration in an aqueous solution comprising an electrically conductive element (1) a first lipophilic-hydrophobic (hereinafter referred to as LH) layer (2) in intimate contact with the element (1), and a second LH layer (3) in initimate contact with the first layer (2). The first LH layer (2) comprises an ahesive, LH polymer having an intrinsic viscosity of from about 0.4 to about 0.9 ml/g; and an LH plasticizer. The second LH layer (3) comprises an LH polymer having an intrinsic viscosity of from about 1 to about 1.5 ml/g; an LH plasticizer, and an LH ionselective ligand of the ion to be determined. Preferably, the first LH layer (2) further comprises an LH charge carrier. As used herein, the term "lipophilic-hydrophobic (LH)" denotes an organic solvent soluble-water insoluble substance. |
