碳化硼中硼同位素丰度的质谱测量

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Determination of Boron Isotope Ratios in Boron Carbide by Mass Spectrometry

摘要: 通过直接测量碳化硼(B₄C)粉末中硼同位素丰度组成,对固态涂样方式下硼热电离质谱测量方法进行研究。研究了涂样技术、升温程序、氧同位素影响扣除等问题。研究结果表明,直接针对固态B₄C样品进行质谱测量,可简化样品化学前处理流程,缩短测量时间,减少实验人员所受剂量。
- 固态B₄C /
- 同位素 /
- 质谱 /
- 测量
Abstract: This paper introduces the direct determination of boron isotope ratios in the boron carbide powder by thermal ionization mass spectrometry. The technique for sample loading, the procedure for heating and the eliminating of effects induced by oxygen are studied. The study indicates that the preparing process for the sample will be shorted, and the time for determination and the exposure dose of the laboratory assistant will be reduced for the reason of directly determination of boron carbide.
- Solid B₄C /
- Isotopes /
- Mass spectrometry /
- Measurement