本工作是使用MAT-260型质谱计进行的固体样品硼同位素质谱分析。样品化学形态为硼砂。采用平行双带结构表面电离型离子源。做固体样品硼同位素质谱分析时,对带的结构做了某些改进,样品带是用厚0.03 mm,宽0.8mm的钽冲压制成,其中央处 This work is a solid-phase sample boron isotope mass spectrometry analysis using a MAT-260 mass spectrometer. The chemical form of the sample is borax. Parallel double-band structure surface ionization type ion source. When performing solid-phase boron isotope mass spectrometry analysis, some improvements were made to the band structure. The sample band was stamped from tantalum 0.03 mm thick and 0.8 mm wide with a central