| 火焰原子吸收光谱法测定U3O8产品中钾钠含量的不确定度评定 |
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| 引用本文： | 龚明明,曹淑琴,孙雪云,郭国龙,杨丹丹.火焰原子吸收光谱法测定U3O8产品中钾钠含量的不确定度评定[J].铀矿冶,2019(3):190-194. |
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| 作者姓名： | 龚明明 曹淑琴 孙雪云 郭国龙 杨丹丹 |
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| 作者单位： | 核工业北京化工冶金研究院 |
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| 摘 要： | 用火焰原子吸收光谱法测量U3O8中钾钠的含量,并对测量结果的不确定度进行了分析评定。主要对样品称量、定容体积、标准溶液、测量结果重复性、工作曲线、树脂吸附等引入的不确定度进行了分析评定,经测定,每克U3O8中钾含量为(16.26±0.84)μg,钠含量为(16.93±0.80)μg。
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| 关 键 词： | 原子吸收光谱法 U3O8 钾钠含量 不确定度 |
Uncertainty Evaluation for the Determination of Potassium and Sodium in U3O8 Products by Flame Atomic Absorption Spectrometry |
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| GONG Ming-ming,CAO Shu-qin,SUN Xue-yun,GUO Guo-long,YANG Dan-dan.Uncertainty Evaluation for the Determination of Potassium and Sodium in U3O8 Products by Flame Atomic Absorption Spectrometry[J].Uranium Mining and Metallurgy,2019(3):190-194. |
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| Authors: | GONG Ming-ming CAO Shu-qin SUN Xue-yun GUO Guo-long YANG Dan-dan |
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| Affiliation: | (Beijing Research Institute of Chemical Engineering and Metallurgy,CNNC,Beijing 101149,China) |
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| Abstract: | The content of potassium and sodium in uranium oxide products was measured by flame atomic absorption spectrometry, and the uncertainties of sample weighing, constant volume, standard solution, repeatability of measurement results, working curve and resin adsorption were analyzed and evaluated. The results show that the content of potassium and sodium in uranium oxide products is(16.26±0.84)μg/g and(16.93±0.80)μg/g. |
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| Keywords: | atomic absorption spectrometry U3O8 potassium and sodium content uncertainty |
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