Cryogenic vacuum extraction scarcely changes low-level tritium (3H) concentrations in free water extracted from environmental samples

被引：0
|
作者：
Yuhi Satoh
Akinobu Ishimine
Hideki Kakiuchi
机构：
[1] Institute for Environmental Sciences (IES),Department of Radioecology
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2022年 / 331卷
关键词：
Tritium; Free water; Cryogenic vacuum extraction; Tritiated water; Environmental sample;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The suitability of cryogenic vacuum extraction for sampling free water (F-water) extracted from environmental materials (grass and soil) was examined with respect to low-level (~ 1 Bq L−1) and precise determination of tritium (3H) concentrations in the extracted water. Tests were conducted using addition-recovery experiments of water containing low 3H activity concentrations (0.43 ± 0.046 Bq L−1) added to dried grass or soil. The results revealed that 3H concentrations in F-water did not significantly differ before and after cryogenic vacuum extraction in both experiments. This suggests that the cryogenic vacuum extraction is useful for sampling F-water to determine 3H concentration in the water.
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页码：165 / 169
页数：4
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