摘要
建立铀钼合金中钼的X射线荧光光谱测定方法。用硝酸-盐酸混合酸溶解样品,调节样品溶液pH值为1~2,在选定的仪器工作条件下进行测定,采用α校正消除干扰。钼的质量分数在1.0%~16.0%范围内与X荧光强度呈良好的线性关系,线性相关系数为0.999 9,检出限为0.039%。样品加标回收率为99%,测定结果的相对标准偏差为0.5%。该方法测定结果与EDTA返滴定法相吻合,满足检测要求。
A method for the determination of molybdenum in uranium molybdenum alloy by X-ray fluorescence spectrometry was established. The sample was dissolved by nitric acid and hydrochloric acid mixed system, and the pH value of solution was adjusted to 1-2, then the sample was determined under the selected instrument working conditions,and the α correct were applied to eliminate interference. The mass fraction of molybdenum had a good linear relationship with X-ray fluorescence intensity in the range of 1.0%-16.0%. The linear correlation coefficient was 0.999 9, and the detection limit was 0.039%. The recovery rate was 99%, and the relative standard deviation of the determination results was 0.5%. The results of this method were consistent with EDTA back titration and it meets the detection requirements.
作者
袁翠宏
王枝梅
杨永明
王梅
王虹
陈艳宏
张庆明
YUAN Cuihong;WANG Zhimei;YANG Yongming;WANG Mei;WANG Hong;CHEN Yanhong;ZHANG Qingming(China North nuclear fuel Co.,Ltd.,Baotou,014035,China;Baotou Medical College,Inner Mongolia University of Science and Technology,Baotou 014060,China)
出处
《化学分析计量》
CAS
2022年第3期65-68,共4页
Chemical Analysis And Meterage
关键词
铀钼合金
X射线荧光光谱法
钼
uranium molybdenum alloy
X-ray fluorescence spectrometry
molybdenum
