Electrolytic enrichment method for tritium determination in the Arctic Ocean using liquid scintillation counter

作     者：Feng Lin Tao Yu Wen Yu Jialin Ni Li Lin Feng Lin;Tao Yu;Wen Yu;Jialin Ni;Li Lin

作者机构：Laboratory of Marine Isotopic Technology and Environmental Risk AssessmentThird Institute of OceanographyMinistry of Natural ResourcesXiamen 361005China Laboratory of Marine Biology and EcologyThird Institute of OceanographyMinistry of Natural ResourcesXiamen 361005China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2020年第39卷第9期

页      面：73-77页

核心收录：

学科分类：08[工学] 0816[工学-测绘科学与技术] 

基　　金：The project sponsored by the Scientific Research Foundation of Third Institute of Oceanography,Ministry of Natural Resources,under contract No.2020012 the Join Project of Xiamen Marine Research and Development Institute under contract No.K191301 

主　　题：tritium liquid scintillation cocktails electrolytic enrichment 

摘      要：A method of measuring the tritium in seawater based on electrolytic enrichment and ultra-low background liquid scintillation counting techniques was *** different factors influencing the detection limit were studied,including the counting time,the electrolytic volume of the seawater samples,the selection of background water,scintillation solution and their *** optimizing the parameters and electrolyzing 350 mL volume of samples,the detection limit of the method was as low as 0.10 Bq/*** order to test the optimization of system for this method,of the 84 seawater samples collected from the Arctic Ocean we measured,92%were above the detection limit(the activity of this samples ranged from 0.10 Bq/L to 1.44 Bq/L with an average of(0.30±0.24)Bq/L).In future research,if we need to accurately measure the tritium activity in samples,the volume of the electrolytic samples will be increased to further reduce the minimum detectable activity.