【摘要】 设计了一套可用于测量土壤样品中全氚的高温解析系统 ,对影响氚回收率的催化剂氧化效率、冷阱回收率、解析系数等因素进行了研究。结果表明 ,550℃下解析 3h ,催化剂的氧化效率为98 6 % ,冷阱回收效率为 99% ,解析系数为 97 8%。该系统能够满足土壤样品中全氚的测量要求更多还原

【Abstract】 A thermal vacuum analytical system is established for determination of tritium in environmental soil samples. The effects on tritium recovery of the efficiency of catalyst oxidation, condenser recovery and analytical coefficient have been studied. Results prove that efficiency of catalyst oxidation is 98.6 %, efficiency of recovery of condenser is 99 %, analytical coefficient is 97.8 % when soil samples have been heated for 3 h at 550 ℃. This system can meet the need of determination of tritium in environmental soil samples.更多还原