摘要
为评价核设施退役中氚对环境的影响，可监测退役前后植物中氚的活度变化来反映。文章设计加工1套用于植物组织自由水解析的低温真空解析系统，该系统对云南杉树叶样品的最佳解析时间定为5～6h，此时20g样品至少能解析水4～5mL用于液闪测量，对树叶中组织自由水的平均回收率为61％。
A freezing analytic system for extracting tissue free water tritium （TFWT） in biological sample was designed and processed. The results show that while 20 g leaves of Yunnansan sample extracting time is 5-6 h in this system, the extracting water of sample is 4-5 mL, and the average extracting ratio of TFWT is 61%. This analytic system can apply to measurement of TFWT in biological sample.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2009年第3期221-223,共3页
Atomic Energy Science and Technology
关键词
氚
冷冻解析
植物
脱水率
tritium
freezing extraction
biological sample
extracting ratio
