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电化学分析法测定钾,有交流示波极谱滴定,和利用钾离子选择电极为指示电极的电位滴定及直接电位法我们提出用银离子选择电极的Gran滴定间接测定法。该法可以弥补其它电化学分析法测定钾时某些不足之处,本法测定精确,且方法较简便,灵敏,测定的最佳浓度范围为10~(-2)-10~(-4)M,当钾量在0.8—20mg/50ml时,测定的回收率为95—105％,钾量在2mg/50ml时,四
Electrochemical analysis for the determination of potassium with AC oscillopolarographic titration and Potentiometric titration using the potassium ion selective electrode as the indicator electrode and the direct potential method We propose an indirect method for the determination of the Gran titration using a silver ion selective electrode. The method can make up for some shortcomings of other electrochemical methods in the determination of potassium. The method is accurate and the method is simple and sensitive. The optimum concentration range is 10 -2 -10 -4. M, when the amount of potassium in the 0.8-20mg / 50ml, the measured recovery was 95-105%, the amount of potassium in the 2mg / 50ml, the four