摘要
以K404.4nm作为分析线,研究了火焰原子吸收分光光度法测定复合肥料中钾含量的方法。该方法的线性范围为0～208mg/L,线性回归方程为A=0.0026c-00100,相关系数r=0.9992,RSD为2.4％～5.0％,回收率为95.6％～101.3％。该方法的测定结果与四苯硼酸钾重量法基本一致,且方法简便、快速。
The determination of potassium in mixed fertilizer was investigated by flame atomic absorption spectrometry in which the next sensitive spectrum line K 404. 4 run was to be taken as analytical spectrum line. The linear range of the method is 0 -208 mg/L, the regression equation is A =0.0026c -0.0100, the correlative coefficient is 0. 9992, RSD is 2.4% -5.0% and the recovery is 95. 6% - 101. 3%. The test result of the method is basically identical with that of potassium tetraphenylborate method. The method is simple and rapid.
出处
《化学分析计量》
CAS
2003年第1期11-12,共2页
Chemical Analysis And Meterage
关键词
火焰原子吸收分光光度法
测定
复合肥料
钾
分析
flame atomic absorption spectrometry, determination, mixed fertilizer, potassium
