Method for eliminating ionization interference to improve potassium element detection precision

The invention discloses a method for eliminating ionization interference to improve potassium element detection precision, and particularly relates to the field of analytical chemistry. The method comprises the steps of reagent preparation, standard working curve drawing and detection. According to the method, the caesium salt which is easier to ionize is added into the analysis sample, the concentration of caesium nitrate in the test sample and each working curve point reaches 2000mg/L, the caesium salt is used as an ionization eliminating agent to eliminate the ionization interference of flame atomic absorption spectrophotometry for detecting the potassium element, and a better standard working curve can be provided compared with the existing adding amount in the market; the linear correlation coefficient is higher and is greater than or equal to 0.99. 本发明公开了一种消除电离干扰以提高钾元素检测精度的方法，具体涉及分析化学领域。所述方法包括试剂的配制、标准工作曲线的绘制和检测。本发明选择在分析试样中加入更易电离的铯盐并使所测试样和各工作曲线点中硝酸铯浓度达到2000mg/L，作电离消除剂予以消除火焰原子吸收分光光度法检测钾元素的电离干扰，能够比市面上现用的加入