リチウム及びケイ素イオンを注入した単結晶アルミナはくを用いて作製したナトリウムイオン選択性電極

抄録

Fabrication of a solid membrane type sodium ionselective electrode based on ion-implanted alumina wafer and its characteristics are described. Alumina wafer had the thickness of 100μm and the diameter of 1.40 cm. Ion-selective membrane, was fabricated that Li⁺, Si⁺ was implanted on the both side of single crystal alumina wafer. The total dose of Li⁺, Si⁺ was the same, viz., 10¹⁴/cm². The response curve had the slope of 42 mV/pNa in the concentration range (10⁰10^-4) mol/l. The full response was achieved after ca. 1 min, and the response was reproducible.