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陨石中痕量硼的分析可以为陨石成因研究提供必要的数据。以前对陨石中硼含量分析均采用比色法和光谱分析法。由于许多玻璃器皿都有很高的含硼量,因此测定中沾污是一个严重的问题。用质子活化分析法测定硼,灵敏度高,没有沾污干扰。用该法测定超纯硅中痕量硼,灵敏度可达10~(-8)％。采用质子活化分析法测定吉林陨石中硼含量,用燃烧法作快速放化分离;采用γ-γ符合测量;利用~(11)B(p,n)~(11)C核反应,并引入平
The analysis of trace boron in meteorites can provide the necessary data for the study of the genesis of meteorites. Previous analysis of boron content in meteorites using colorimetric and spectral analysis. Because many glassware has a high boron content, contamination in the assay is a serious problem. Determination of boron by proton activation analysis, high sensitivity, no contamination interference. Determination of trace boron in ultrapure silicon by this method can reach 10 ~ (-8)% sensitivity. The content of boron in Jilin meteorite was determined by proton activation analysis, and was rapidly separated by combustion method. Γ-γ was used to measure the content of boron. The nuclear reaction of ~ (11) B (p, n)