X射线荧光光谱法测定铀钼合金中钼  

Determination of molybdenum in uranium molybdenum alloy by X-ray fluorescence spectrometry

作　　者：袁翠宏 王枝梅[2] 杨永明[1] 王梅[1] 王虹[1] 陈艳宏 张庆明[1] 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)

机构地区：[1]中核北方核燃料元件有限公司,包头014035 [2]内蒙古科技大学包头医学院,包头014060

出　　处：《化学分析计量》2022年第3期65-68,共4页Chemical Analysis And Meterage

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.

关 键 词：铀钼合金 X射线荧光光谱法 钼 

分 类 号：O657.3[理学—分析化学]