中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地球环境研究所
  3. 中国科学院地球环境研究所
  4. 加速器质谱中心
Rapid determination of plutonium isotopes in small samples using single anion exchange separation and ICP-MS/MS measurement in NH3-He mode for sediment dating

文献类型：期刊论文

作者Xu, Yihong4; Li, Chen4; Yu, Haiping4; Fang, Fengman4; Hou, Xiaolin2,3; Zhang, Chao4; Li, Xiaofei4; Xing, Shan1
刊名TALANTA
出版日期2022-04-01
卷号240页码:9
ISSN号0039-9140
关键词ICP-MS/MS NH3-He mode Elimination of uranium interference Plutonium isotopes Sediment dating
DOI10.1016/j.talanta.2021.123152
通讯作者Xu, Yihong(yhxu@ahnu.edu.cn) ; Xing, Shan(xingshan.yc@foxmail.com)
英文摘要To accurately determine ultra-trace Pu isotopes in small environmental samples, we explored ICP-MS/MS in NH3-He mode, and investigated mechanism of U-238 interference removal and measurement sensitivity improvement for plutonium isotopes. The interference of uranium and uranium hydrides was effectively eliminated using 0.4 mL/min NH3 as reaction gas by shifting them to U(NHm)(n)(+) and UH(NHm)(n)(+). The overall interference of uranium was reduced to <2.4 x 10 (-7), while remaining excellent Pu-239 sensitivity (13,900 Mcps/(mg/L)) mainly due to ion focusing effect of Pu by helium gas. On this basis, the purification of plutonium using a single AG1- x 4 column was proved to be sufficient for accurate determination of plutonium isotopes by the developed detection method, and the detection limits for the method were estimated to be 0.16 fg (0.4 mu Bq) for Pu-239, 0.046 fg (0.4 mu Bq) for Pu-240 and 0.039 fg (0.15 mBq) for Pu-241. The method was validated by analyzing plutonium isotopes in certificated reference materials and reported environmental samples of only 1-2 g. The analytical results of ultra-trace Pu isotopes in small amounts (similar to 1 g) of lake sediments obtained by the developed method were successfully applied to sediment dating.
WOS关键词INDUCTIVELY-COUPLED PLASMA ; ENVIRONMENTAL-SAMPLES ; PU ISOTOPES ; MASS-SPECTROMETRY ; SOIL-EROSION ; PU-241 ; SEA
资助项目National Natural Science Foundation of China[41877449] ; National Natural Science Foundation of China[12175201] ; Anhui Normal University ; Scientific Research Program for Young Talents of the China National Nuclear Corporation ; 2020 National Innovation and Entrepreneurship Training Program for college students[202001372082] ; Environmental Radioactivity Network Center (ERAN)[I-21-19]
WOS研究方向Chemistry
语种英语
出版者ELSEVIER
WOS记录号WOS:000759222000003
资助机构National Natural Science Foundation of China ; Anhui Normal University ; Scientific Research Program for Young Talents of the China National Nuclear Corporation ; 2020 National Innovation and Entrepreneurship Training Program for college students ; Environmental Radioactivity Network Center (ERAN)
源URL[http://ir.ieecas.cn/handle/361006/17559]  
专题地球环境研究所_加速器质谱中心
通讯作者Xu, Yihong; Xing, Shan
作者单位1.China Inst Radiat Protect, Taiyuan 030000, Peoples R China
2.Chinese Acad Sci, Xian AMS Ctr, Inst Earth Environm, State Key Lab Loess & Quaternary Geol,Shaanxi Key, Xian 710061, Peoples R China
3.Tech Univ Denmark, Dept Environm Engn, Riso Campus, DK-4000 Roskilde, Denmark
4.Anhui Normal Univ, Sch Geog & Tourism, Key Lab Earth Surface Processes & Reg Response Ya, Wuhu 241002, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Yihong,Li, Chen,Yu, Haiping,et al. Rapid determination of plutonium isotopes in small samples using single anion exchange separation and ICP-MS/MS measurement in NH3-He mode for sediment dating[J]. TALANTA,2022,240:9.
APA Xu, Yihong.,Li, Chen.,Yu, Haiping.,Fang, Fengman.,Hou, Xiaolin.,...&Xing, Shan.(2022).Rapid determination of plutonium isotopes in small samples using single anion exchange separation and ICP-MS/MS measurement in NH3-He mode for sediment dating.TALANTA,240,9.
MLA Xu, Yihong,et al."Rapid determination of plutonium isotopes in small samples using single anion exchange separation and ICP-MS/MS measurement in NH3-He mode for sediment dating".TALANTA 240(2022):9.

入库方式： OAI收割

来源：地球环境研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。