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本文研究深海锰结核中10Be的加速器质谱法分析。提出了NaOH和EDTA分离纯化-BeO制样一加速器质谱法测量10Be的分析程序。研究结果表明,该法回收率较高,分离效果较好,按该法制备的BeO靶能较好地满足加速器质谱法对测量10Be的要求。利用该法测得北太平洋两个锰结核的生长速率分别为2.7mm/Ma和1.5mm/Ma。这些结果与其他研究者所测数据相比,非常一致。
In this paper, the analysis of 10Be in deep sea manganese nodules by accelerator mass spectrometry. Proposed NaOH and EDTA separation and purification - BeO sample-accelerator mass spectrometry 10Be analysis program. The results show that this method has a high recovery rate and a good separation effect. The BeO target prepared by this method can better meet the requirements of accelerator mass spectrometry for the measurement of 10Be. Using this method, the growth rates of two manganese nodules in the North Pacific were measured as 2.7 mm / Ma and 1.5 mm / Ma, respectively. These results are very consistent with the data measured by other researchers.