原子吸收法测定化合物三氯化钌中的钠

摘要

在5％盐酸介质中,采用原子吸收分光光度计测量三氯化钌中的钠含量.波长选择589.0 nm,钠标准工作曲线范围为0～2.0 μg/mL,线性相关系数为0.9999.研究了酸介质、仪器工作条件、基体、干扰元素等因素对测量结果的影响.方法的加标回收率为94.7％～101.5％,不确定度为0.0082μg/mL,检出限为0.001μg/mL.%The ruthenium trichloride was dissolved in 5% hydrochloric acid, and the sodium concentration in the sample was determined directly by atomic absorption spectrometry. The decent wavelength was 589.0 nm, sodium standard working curve range was 0-2.0 μg/mL, liner correlation coefficient was 0.9999. The effects of acid medium, running condition of the AAS, interference element were studied. The recovery of standard addition is between 94.7% to 101.5%, the uncertainty of method is 0.0082 μg/mL, detection limit is 0.001 μg/mL.