电导法快速测定卤水中钾的含量

文章用四苯硼钠溶液电导滴定法确定终点，测定卤水中的钾的含量。方法简便，测定周期仅需１０ｍｉｎ左右，所需试剂种类和用量少，准确度和精密度与四苯硼钠重量法接近。方法还适用于各种钾盐和复混肥中钾的测定。

In this paper the terminal point was determined by electric conductivity titration method with the use of sodium tetraphenylborate solution and consquently the content of K in brine is obtained. The method takes the advange of simple and rapid operation and need of a little mount of few reagerts . The degree of accurcy approaches that of weight method. This method can be applied to the analysis of the content of potassium in potassic salts and compound fertilizer,etc.