环境土壤样品中^99Tc的分析方法研究进展
随着核能的开发及核医学诊断的发展,^99Tc的研究日益受到重视。^99Tc具有半衰期长、裂变产额高和迁移性强等特点,在核废物的地质处置、环境安全评价及生物效应方面倍受关注,准确测定环境土壤样品中^99Tc的含量显得至关重要。本文在文献调研的基础上较详细总结了Tc的化学性质,并对^99Tc分析流程中样品的预处理、化学分离纯化、制源及测量等过程中涉及的主要方法进行了综述,指出了现今分析方法中存在的主要瓶颈,并对环境样品中^99Tc的分析做了展望。...
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| Published in | 核化学与放射化学 Vol. 39; no. 5; pp. 321 - 335 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
兰州大学核科学与技术学院放射化学与核环境研究所,甘肃兰州,730000%兰州大学核科学与技术学院放射化学与核环境研究所,甘肃兰州730000
2017
兰州大学特殊功能材料与结构设计教育部重点实验室,甘肃兰州 730000 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-9950 |
| DOI | 10.7538/hhx.2017.39.05.0321 |
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| Summary: | 随着核能的开发及核医学诊断的发展,^99Tc的研究日益受到重视。^99Tc具有半衰期长、裂变产额高和迁移性强等特点,在核废物的地质处置、环境安全评价及生物效应方面倍受关注,准确测定环境土壤样品中^99Tc的含量显得至关重要。本文在文献调研的基础上较详细总结了Tc的化学性质,并对^99Tc分析流程中样品的预处理、化学分离纯化、制源及测量等过程中涉及的主要方法进行了综述,指出了现今分析方法中存在的主要瓶颈,并对环境样品中^99Tc的分析做了展望。 |
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| Bibliography: | With the exploiting of nuclear energy and the development of nuclear medical diagnosis,the research of ^99Tc is becoming more and more important.Because of the long halflife,high fission yield,and high mobility,^99Tc has caused widely attention in disposing nuclear waste,environmental safety assessment and biological effect,consequently it is essential to determine the accurate concentration of ^99Tc in environmental soil samples.This article reviews the chemical properties of Tc and compares the developed analytical methods of ^99Tc in environmental samples.The procedures contain four steps：sample pre-treatment,chemical separation and purification,source preparation and ^99Tc measurement.The work illustrates the major bottlenecks of analytical methods reported and makes the prospect of ^99Tc analysis in the future. 11-2045/TL 99Tc ; environmental soil sample; chemistry properties; analytical procedures; review SUN Xue-jie1,LI Run1,YANG Jun-qiang1,SHI Ke-liang1,2,WU Wang-suo1,2（1. Radiochemistry Lab？ School of N |
| ISSN: | 0253-9950 |
| DOI: | 10.7538/hhx.2017.39.05.0321 |