基于碳—陶复合材料的铜离子敏感电极研究

Copper(Ⅱ) Ion Sensitive Electrodes Based on Carbon-Ceramic Composites

本文以几种碳—陶复合材料为电极材料制备离子敏感电极。这些电极对铜离子有较好的响应。其中以Ti和Al为添加剂的碳—陶复合材料制备的铜离子敏感电极分别在5×10~6～1×10~2mol/L和2.5×l0~6～1×10^(-2)mol/L呈能斯特响应,检测下限均为1×10^(-6)mol/L。这两种电极具有良好的稳定性和重现性。

Several carbon-ceramic composites were used as elcctroactive materials to fabricate ion sensitive electrodes. The potentiometric response electrodes based on carbon-ceramic composites with the additive of Ti and Al toward to copper(2×) ion, and the Nernstian response range is showed from 5×10-6 to 1×10 -2mol/L,the detection limit is of 1×10-6mol/L in the range from 2. 5×10-6 to 1×10 2mol/L , respectively. Excellent stability and reproducibility of the electrodes was observed.