| 锆铀合金中痕量硼的同位素稀释质谱法测定 |
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| 引用本文： | 谢永怀 田馨华. 锆铀合金中痕量硼的同位素稀释质谱法测定[J]. 核动力工程, 1991, 12(3): 87-91 |
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| 作者姓名： | 谢永怀 田馨华 |
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| 作者单位： | 中国核动力研究设计院 成都(谢永怀，田馨华，廖祖民，黄德扬，张春华)，中国核动力研究设计院 成都(叶丽华) |
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| 摘 要： | 本文介绍了用同位素稀释技术测定锆铀合金试样中痕量硼的方法。选用富集~(10)B为同位素稀释剂,用硫酸-硫酸铵溶样,使硼形成挥发的硼酸甲酯与基样分离,用热电离质谱仪进行硼的同位素比值测量。方法的检测下限为1.5ng(硼)。对于含硼量小于1.0μg/g(样)的锆铀合金试样,相对标准偏差小于±1.0%。
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| 关 键 词： | 锆铀合金 硼 同位素稀释 质谱法 |
Determination of the Trace Boron in Uranium-Zirconium Alloy by Isotope Dilution Mass Spectrometry |
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| Xie Yonghuai Tian Qinghua Liao Zhuming Huang Deyang Zhang Chunhua Yie Lihua. Determination of the Trace Boron in Uranium-Zirconium Alloy by Isotope Dilution Mass Spectrometry[J]. Nuclear Power Engineering, 1991, 12(3): 87-91 |
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| Authors: | Xie Yonghuai Tian Qinghua Liao Zhuming Huang Deyang Zhang Chunhua Yie Lihua |
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| Abstract: | A method of determinating trace boron in Uranium-Zirconium alloy by isotope dilution mass spectrometry is presented. A richened ~(10)B is selected for the spike. The sample is dissolved with H_2SO_4-(NH_4)_2SO_4 mixture in a pressure vessel. The boron in the form of volatile methyl borate can be separated from the matrix. A thermal ionization mass spectrometer is used for the ~(10)B/~(11)B ratio measurement. The detection lower limit is 1.5ng boron. The standard deviation is less than 1.0% for the Uranitum-Zirconium alloy containing boron less than 1.0ug/g sample. |
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| Keywords: | Isotope dilution mass spectrometry Trace borom Uranium-Zirconium alloy. |
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