用四苯硼钠比浊法测钾适合于含钾量少的样品测定.但目前有关该法测钾的标准曲线线性关系和再现性均不理想,影响测定结果.本文采用提高四苯硼钠液浓度,降低标准系列液浓度及待测液钾含量等措施,获得了理想的标准曲线线性关系.且操作简便,易于掌握,便于推广. Potassium tetraphenylphosphate turbidimetric method is suitable for the determination of low potassium content of the sample, but the current method of potassium standard curve of linearity and reproducibility are not ideal, the determination of the results.In this paper, the increase of sodium tetraphenylborate Liquid concentration, reducing the standard series of liquid concentration and potassium content of the test solution and other measures, obtained the ideal linear relationship between the standard curve. And easy to operate, easy to grasp, easy to promote.