摘要
研究了Pt-SDB疏水催化剂中残氚测量方法。待测样品经5A分子筛三级干燥和真空热处理排除催化剂表面吸附氚、微波消解制样后,液闪测得残氚量为1.69×104Bq/g,测量不确定度为10%(K=2)。
The determination technique for the residual tritium in Pt-SDB hydrophobic catalyst with liquid scintillation counting method was studied.Pt-SDB hydrophobic catalyst sample was treated with 5Amolecular sieve,and then heated under vacuum condition to remove the adsorption tritium.The sample was dissolved in the mixture of nitric acid and sulfuric acid in Advanced Microwave Labstation.The residual tritium of the tested sample is 1.69×10^4 Bq/g,and the uncertainty of measurement is 10% （K=2）.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2010年第9期1060-1064,共5页
Atomic Energy Science and Technology
基金
国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(10676022)
关键词
Pt-SDB疏水催化剂
残氚测量
微波消解
液闪计数
Pt-SDB hydrophobic catalyst
residual tritium measurement
microwave digestion
liquid scintillation counting
