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| 论文编号: |
62 |
| 论文题目: |
Preliminary study of Be-10/Be-7 in rainwater from Xi'an by Accelerator Mass Spectrometry |
| 英文论文题目: |
Preliminary study of Be-10/Be-7 in rainwater from Xi'an by Accelerator Mass Spectrometry |
| 第一作者: |
Zhang, L |
| 英文第一作者: |
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| 联系作者: |
Fu Yunchong |
| 英文联系作者: |
Fu Yunchong |
| 外单位作者单位: |
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| 发表年度: |
2017 |
| 卷: |
41 |
| 期: |
1 |
| 页码: |
18201 |
| 摘要: |
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| 英文摘要: |
The Be-10/Be-7 ratio is a sensitive tracer for the study of atmospheric transport, particularly with regard to stratosphere-troposphere exchange. Measurements with high accuracy and efficiency are crucial to Be-7 and Be-10 tracer studies. This article describes sample preparation procedures and analytical benchmarks for Be-7 and Be-10 measurements at the Xi'an Accelerator Mass Spectrometry (Xi'an-AMS) laboratory for the study of rainwater samples. We describe a sample preparation procedure to fabricate beryllium oxide (BeO) AMS targets that includes co-precipitation, anion exchange column separation and purification. We then provide details for the AMS measurement of Be-7 and Be-10 following the sequence BeO--> Be2+-> Be4+ in the Xi'an- AMS. The Be-10/Be-7 ratio of rainwater collected in Xi'an is shown to be about 1.3 at the time of rainfall. The virtue of the method described here is that both Be-7 and Be-10 are measured in the same sample, and it is suitable for routine analysis of large numbers of rainwater samples by AMS. |
| 刊物名称: |
CHINESE PHYSICS C |
| 英文刊物名称: |
CHINESE PHYSICS C |
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| 全文链接: |
http://iopscience.iop.org/article/10.1088/1674-1137/41/1/018201/meta;jsessionid=A904D99B45BEDCFF6C625D02F4D64AE5.c1.iopscience.cld.iop.org |
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