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本文讨论了铜离子选择电极制备的一种简易方法并且测定了电极的性能。采用经石蜡疏水后的光谱纯石墨棒研涂上电活性物质。该电极性能良好。线性响应范围为10~1～1O~6M,检测下限为10~7M;连续8小时测定电极电位漂移在±2.0mv内;重现性实验5次测定,其标准偏差平均在2.0左右;响应时间30秒～3分。尤其电极不需要粘结,易于更新。特别适合于不适宜作为单晶或压片制备的电极。一般实验室均可制备。该方法某些方面优于压片制膜方法。
This article discusses a simple method for preparing copper ion selective electrodes and determines the performance of the electrode. After the use of hydrophobic paraffin wax pure graphite rod coated with electroactive substances. The electrode performs well. Linear response range of 10 ~ 1 ~ 1O ~ 6M, detection limit of 10 ~ 7M; 8 hours continuous determination of the electrode potential drift within ± 2.0mv; reproducibility of the test 5 times, the average standard deviation of about 2.0; response time 30 seconds to 3 minutes. In particular, the electrodes do not need to be bonded and are easy to renew. It is especially suitable for electrodes that are not suitable for single crystal or tableting. General laboratory can be prepared. Some aspects of this method is superior to the film-forming method.