BeO preparation and AMS measurement result for loess samples

WU Zhenkun1; 2 ZHOU Weijian1; 3 LIU Min2; 3 YU Huagui1; 4 PAN Caiwen2; 3 KONG Xianghui1; 4 LU Xuefeng1

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BeO preparation and AMS measurement result for loess samples

更新时间：2021-03-12

- BeO preparation and AMS measurement result for loess samples
- NUCLEAR TECHNIQUES Issue 6, (2008)
- 作者机构：
  
  1. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室
  2. 西安加速器质谱中心
  3. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室西安710075西安加速器质谱中心西安,710052
  4. 西安710075西安加速器质谱中心西安710052西安交通大学西安,710049
  5. 西安710075西安加速器质谱中心西安710052中国科学院研究生院北京,100049
- 作者简介：
- 基金信息：
  
  国家科技部(NBRPC2004CB720200);中国科学院知识创新工程重要方向性项目(KZCX2-YW-118);国家自然科学基金重大项目(40599421)资助
- DOI：
  CLC： TL817.4
- Published：01 June 2008
- 稿件说明：
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[1]武振坤,周卫健,刘敏,余华贵,潘彩文,孔祥辉,卢雪峰.黄土样品的BeO制备及AMS测量[J].核技术,2008(06):427-432.

WU Zhenkun1, 2 ZHOU Weijian1, 3 LIU Min2, et al. BeO preparation and AMS measurement result for loess samples[J]. Nuclear techniques, 2008, (6): 427-432.
[1]武振坤,周卫健,刘敏,余华贵,潘彩文,孔祥辉,卢雪峰.黄土样品的BeO制备及AMS测量[J].核技术,2008(06):427-432. DOI：

WU Zhenkun1, 2 ZHOU Weijian1, 3 LIU Min2, et al. BeO preparation and AMS measurement result for loess samples[J]. Nuclear techniques, 2008, (6): 427-432. DOI：

摘要

采用常规方法提取黄土-古土壤样品中的10Be

制备BeO样品时

无法有效降低样品中B含量

导致在10BeAMS测量中本底值偏高。本文对BeO制备方法进行了优化。新的制备流程改进了阳离子树脂交换、Be（OH）2转化为BeO的灼烧方式以及实验所采用的仪器设备。在西安加速器质谱仪（Xi’an-AMS）上测试结果表明

采用该化学流程制备的BeO样品化学本底可以达到2.04×10-14。本文还介绍了Xi’an-AMS测量10Be的方法与测量结果。

Abstract

The classic procedure of BeO preparation for loess-paleosol cannot restrain the concentration of 10B effectively

which results in higher background of 10Be measurement.The procedure has been modified in this paper.It includes detailed eluting curve for cation exchanging

the method of converting Be(OH)2 to BeO

and the experiment equipments.The measurement results by Xi’an AMS indicate that the background of modified BeO preparation procedure can be lowered to 2.04×10-14 on 3MV AMS.The method and measurement results have also been introduced for Xi’an-AMS.

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Related Author

2 WANG Xulong1 1

3 LU Yanchou1

KANG Shugang1

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陈繁荣

陈家军

武贵斌

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Related Institution

State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’An 710075, China) 2

中国科学院研究生院

中国地震局地质研究所地震动力学国家重点实验室

Guangzhou Institute of Geochemistry, the Chinese Academy of Sciences, Guangzhou 510640) 2

北京师范大学环境科学研究所

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