基于还原体系的气溶胶中铀同位素分析方法研究

辐射防护 ›› 2021, Vol. 41 ›› Issue (3): 223-228.

基于还原体系的气溶胶中铀同位素分析方法研究

李周, 张静, 马旭媛, 李鹏翔, 师琦琦, 韩玉虎, 任晓娜

中国辐射防护研究院,太原 030006

收稿日期:2020-07-14 出版日期:2021-05-20 发布日期:2021-07-12
作者简介:李周(1983—),男,2007年本科毕业于四川大学应用化学专业,副研究员。E-mail:zhouzhou0307@126.com

Study on analysis methods of uranium isotopes in aerosol samples based on reduction system

LI Zhou, ZHANG Jing, MA Xuyuan, LI Pengxiang, SHI Qiqi, HAN Yuhu, REN Xiaona

China Institute for Radiation Protection, Taiyuan 030006

Received:2020-07-14 Online:2021-05-20 Published:2021-07-12

摘要/Abstract

摘要： 铀的同位素分析对铀的辐射剂量评价和环境污染源调查工作有重要意义。本文建立了以抗坏血酸为还原剂的气溶胶样品铀同位素分析方法,将气溶胶样品全融处理,离子交换法对铁、钚等干扰元素的去除效果良好,铀同位素的放化回收率为74.5%～93.6%,平均值为81.5%,能够满足气溶胶样品铀同位素常规分析的要求。

关键词: 还原体系, 气溶胶, 铀同位素, 分析方法

Abstract: The analysis of uranium isotopes is of great significance to the radiation dose assessment caused by uranium and the investigation of environmental pollution sources. A procedure for analysis of uranium isotopes in aerosol samples with ascorbic acid as reduction agent was established. The aerosol samples were completely melted. The analytical method had a good removal effect on interfering elements such as iron and plutonium, and the radiochemical recovery rates of uranium isotopes were in the range of 74.5% and 93.6%, with an average of 81.5%, which can meet the requirements of routine uranium isotopes analysis of aerosol samples.

Key words: reduction system, aerosol, uranium isotopes, analysis

中图分类号:

TL275

李周, 张静, 马旭媛, 李鹏翔, 师琦琦, 韩玉虎, 任晓娜. 基于还原体系的气溶胶中铀同位素分析方法研究[J]. 辐射防护, 2021, 41(3): 223-228.

LI Zhou, ZHANG Jing, MA Xuyuan, LI Pengxiang, SHI Qiqi, HAN Yuhu, REN Xiaona. Study on analysis methods of uranium isotopes in aerosol samples based on reduction system[J]. RADIATION PROTECTION, 2021, 41(3): 223-228.

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