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1. 中国科学院地球化学研究所
2. 中国科学院上海原子核研究所
纸质出版日期:1991-01-01
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[1]易惟熙,沈承德,欧阳自远,胡妙君,刘联璠,周慰囡,章晖.AMS-BeO制备技术及~(10)Be的测定[J].核技术,1991(01):33-35.
Yi Weixi Shen Chengde Ouyang Ziyuan. The preparation of AMS-BeO and the measurements of 10Be[J]. Nuclear techniques, 1991, (1): 33-35.
报道了用于AMS
10
Be分析的BeO的制备流程
用EDTA作掩蔽剂
在不同pH值下沉淀不同的离子
从而达到纯化Be的目的
再在高温灼烧下转换成BeO。目前制备的样品有空白、陨石、沉积物及锰结核。用本流程制得的空白的
10
Be/
9
Be比值为1.1×10
-13
略高于Zürich ETH及Pennsylvania实验室
而低于其他二实验室
显示了我们制得的BeO中
10
B干扰小
因而制样流程是成功的。
The chemical procedure of preparing BeO used in AMS is reported. With EDTA as shielding reagents
different ions are precipitated at different pH values to purify Be which is then converted to BeO at high temperature. A set of BeO samples including Jilin meteorite
ocean sediment
Mn-ncdule and blank have been prepared for use. For the blank the ratio 10Be/9Be is measured to be 1.1×10-15
a bit higher than that of Zurich ETH and Pennsylvania
and lower than that of other laboratories. The results show that the interference of 10B in our samples is negligible and the chemical processes of making BeO samples are therefore successful.
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