试谈离子电极法测定陶瓷原料中钾钠的可行性

Talk on the Reliability of Determing K and Na Contents in Ceramic Raw Meterials with the Ion Selective Electrode Method

一、前言本世纪六十年代发展起来的离子选择电极法,到七十年代成为热门的电化学分析方法。随着应用的广泛和对电极研制的深入,人们发现有不少的离子电极都存在缺陷,难以满足高标准的要求。这些缺陷主要是选择性差、寿命短、稳定性差以及不能在低浓差范围内保持良好的能斯特响应功能。虽然如此,人们对离子电极法仍抱有很大的希望。这是由于电极法具有独到的优点——设备廉价、操作简便、安全,方法的应用也很灵活、机动。例如,在不到半平方米的工作台面上,可在几分钟的短时间内。

The shortcomings of the ISE method, such as its poor selectivity, short lifetime, bad stability and not keeping better Nernst Response Function in the range of the low consistency, have been analysed all-sidedly. But this method has such a original advantage that it can be used in the ceramic field.