植物中有机结合氚制样条件的实验研究

孟丹; 王伟娟; 文玮; 杜阳; 周银行; 谭昭怡; 王和义

doi:10.11889/j.0253-3219.2016.hjs.39.090302

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植物中有机结合氚制样条件的实验研究

核化学、放射化学、放射性药物和核医学 | 更新时间：2021-05-24

- 植物中有机结合氚制样条件的实验研究
- Experimental study of organically bound tritium preparation condition in plant
- 核技术 2016年39卷第9期文章编号：090302
- 作者机构：
  
  中国工程物理研究院核物理与化学研究所绵阳 621900
- 作者简介：
  
  [ "孟丹,女,1985年出生,2011年于中国工程物理研究院获硕士学位,主要从事氚监测与分析相关研究", "MENG Dan, female, born in 1985, graduated from China Academy of Engineering Physics with a master’s degree in 2011, mainly engaged in tritium monitoring and analysis of related research" ]
- 基金信息：
  
  中国工程物理研究院安全环保职业卫生科研项目( )
- DOI：10.11889/j.0253-3219.2016.hjs.39.090302
  中图分类号： TL72
- 收稿日期：2016-03-22，
  
  修回日期：2016-05-28，
  
  纸质出版日期：2016-09
- 稿件说明：
移动端阅览
孟丹, 王伟娟, 文玮, 等. 植物中有机结合氚制样条件的实验研究[J]. 核技术, 2016,39(9):090302

Dan MENG, Weijuan WANG, Wei WEN, et al. Experimental study of organically bound tritium preparation condition in plant[J]. Nuclear techniques, 2016, 39(9): 090302
孟丹, 王伟娟, 文玮, 等. 植物中有机结合氚制样条件的实验研究[J]. 核技术, 2016,39(9):090302 DOI： 10.11889/j.0253-3219.2016.hjs.39.090302.

Dan MENG, Weijuan WANG, Wei WEN, et al. Experimental study of organically bound tritium preparation condition in plant[J]. Nuclear techniques, 2016, 39(9): 090302 DOI： 10.11889/j.0253-3219.2016.hjs.39.090302.

摘要

为了准确评价环境生物中的氚水平，基于高温催化氧化的原理，建立了一套生物中有机结合氚（Organically Bound Tritium

OBT）的制样装置Pyrolyser高温分解熔炉，通过大量的条件实验，优化了OBT的制样条件，并对典型植物中OBT分析的不确定度进行了研究。结果表明，在该装置中OBT制备的最佳条件为通氧量100mL·min

-1

、催化氧化温度800℃和氧化燃烧温度600℃，此时，植物样品中OBT的回收率可达85%以上。优化后高温分解熔炉的制样过程更加安全，样品燃烧氧化更加充分，完全满足环境植物中OBT的分析要求，可用于环境生物氚水平测量及评价。

Abstract

Background:

In the environment tritium exists primarily as tritiated water(HTO).However

tritium can also be incorporated into organically bound tritium(OBT)in plants and animals

and the OBT of environmental organisms can reflect the environmental tritium level.

Purpose:

In order to accurately evaluate the level of tritium in the biological environment

the furnace of tritium-carbon oxidation burning-pyrolyser pyrolysis has been developed to analyze the OBT activity of environmental plant on the base of the principle of high temperature catalytic oxidation.

Methods:

In this paper

the preparation condition of the pyrolyser-furnace was optimized through a lot of experiments

and the uncertainty of OBT in typical plant was studied.

Results:

The results indicate that the optimum preparation conditions of OBT in plant are with the oxygen flow rate of the working tube at 100 mL·min

-1

the catalytic oxidation temperature at 800°C and the combustion temperature at 600℃.At this point

the recovery rate of combustion for different samples was kept above 85%.

Conclusion:

The sample preparation process of optimized condition is more secure and the combustion of plant sample is more complete

which completely meet the requirement of OBT analysis in environmental plant

and this method can be used in the tritium level measurement and evaluation in the environmental organism.

关键词

Keywords

references

Canadian Nuclear Safety Commission.Tritium studies [OL].2010-05-18[2016-01-06] . http://www.nuclearsafety.gc.ca/eng/readingroom/tritium/tritium_studies.cfm http://www.nuclearsafety.gc.ca/eng/readingroom/tritium/tritium_studies.cfm

N Baglan , G Alanic , Meignen R Le , . A follow up of the decrease of non exchangeable organically bound tritium levels in the surroundings of a nuclear research center . Journal of Environmental Radioactivity , 2011 . 102 695 - 702 . DOI: 10.1016/j.jenvrad.2011.03.014 http://doi.org/10.1016/j.jenvrad.2011.03.014 .

S Diabate , S Strack . Organically bound tritium . Health Physics , 1993 . 65 ( 6 ): 698 - 712 . DOI: 10.1097/00004032-199312000-00008 http://doi.org/10.1097/00004032-199312000-00008 .

杨怀元 . 氚的安全与防护 , : 北京原子能出版社 , 1997 . 207 - 223 .

Huaiyuan YANG . Tritium safety and protection , : Beijing Atomic Energy Press , 1997 . 207 - 223 .

任天山 , 赵秋芬 , 陈炳如 , . 我国食物和环境氚所致居民剂量 . 中华放射医学与防护杂志 , 2001 . 21 ( 6 ): 463 - 467 . http://www.cnki.com.cn/Article/CJFDTOTAL-ZHFS200106031.htm .

Tianshan REN , Qiufen ZHAO , Bingru CHEN , . Committed effective dose to Chinese residents caused by tritium in food and environmental water . Chinese Journal of Radiological Medicine and Protection , 2001 . 21 ( 6 ): 463 - 467 . http://www.cnki.com.cn/Article/CJFDTOTAL-ZHFS200106031.htm .

中华人民共和国国家质量监督检验检疫总局.GB18871-2002:电离辐射防护与辐射源安全基本标准[S].北京:中国标准出版社, 2003

The State Administration for Quality Supervision and Inspection and Quarantine of the People's Republic of China.GB18871-2002:Basic standards for protection again simonizing radiation and for the safety of radiation sources[S].Beijing:China Standards Press, 2003

杨怀元 . 我国核设施与环境氚的监测 . 辐射防护通讯 , 1994 . 14 ( 3 ): 4 - 14 . http://www.cnki.com.cn/Article/CJFDTOTAL-DEFE403.001.htm .

Huaiyuan YANG . China's nuclear facilities and environmental tritium monitoring . Radiation Protection Communication , 1994 . 14 ( 3 ): 4 - 14 . http://www.cnki.com.cn/Article/CJFDTOTAL-DEFE403.001.htm .

W J G Workman , S B Kim , T G Kotzer . Inter-laboratory comparison of organically bound tritium measurements in environmental samples . Fusion Science and Technology , 2005 . 48 763 - 766 . http://cn.bing.com/academic/profile?id=2134199960&encoded=0&v=paper_preview&mkt=zh-cn .

Bacchetta A, Baglan N.Speciation of tritium in environmental samples[C].10th International Conference - on Tritium Science and Technology, Vienna, Austria, 2013

郑晓敏 , 吴宗梅 . 松针中组织自由水氚 . 辐射防护 , 1993 . 13 ( 4 ): 308 - 309 .

Xiaomin ZHENG , Zongmei WU . The tissue free water tritium in pine needle . Radiation Protection , 1993 . 13 ( 4 ): 308 - 309 .

康厚军 , 张东 , 石正坤 . 植物中组织自由水氚的测量方法 . 原子能科学技术 , 2009 . 43 ( 3 ): 221 - 223 . http://www.cnki.com.cn/Article/CJFDTOTAL-YZJS200903006.htm .

Houjun KANG , Dong ZHANG , Zhengkun SHI . Measurement of tissue free water tritium in plant . Atomic Energy Science and Technology , 2009 . 43 ( 3 ): 221 - 223 . http://www.cnki.com.cn/Article/CJFDTOTAL-YZJS200903006.htm .

邱永梅 , 但贵萍 , 文玮 , . 退役核设施环境植物中氚的分析 . 同位素 , 2012 . 25 ( 2 ): 33 - 36 . http://www.cnki.com.cn/Article/CJFDTOTAL-TWSZ201202006.htm .

Yongmei QIU , Guiping DAN , Wei WEN , . Analysis of tritium in environmental plant samples around nuclear facilities . Journal of Isotopes , 2012 . 25 ( 2 ): 33 - 36 . http://www.cnki.com.cn/Article/CJFDTOTAL-TWSZ201202006.htm .

Y J Huang , F Zeng , B Zhang , . Method validation and uncertainty evaluation of organically bound tritium analysis in environmental sample . Journal of Environmental Radioactivity , 2014 . 134 83 - 88 . DOI: 10.1016/j.jenvrad.2014.03.010 http://doi.org/10.1016/j.jenvrad.2014.03.010 .

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