核素迁移实验中示踪剂溴离子的测定研究  

Determination of Tracer Bromide in Radionuclide Migration Experiment

作　　者：韩宝华[1] 高筑琴[1] 

机构地区：[1]中国辐射防护研究院,太原030006

出　　处：《辐射防护通讯》2003年第5期24-26,共3页Radiation Protection Bulletin

摘　　要：将饮用天然矿泉水中溴化物的测定方法应用于核素迁移实验中 ,建立了地下水和黄土中溴离子 ( Br- )含量的测定方法。根据吸光度随 Br-浓度的变化 ,得出该方法的最高检测浓度为 3.4 3mg/L。研究了温度对 Br-浓度吸光度的影响 ,确定最佳测定温度为 30℃ ;对土样实验中的沉淀剂进行了比较。实验的相对标准偏差为 1.4 3% ,回收率为 94 .2 %～ 10 4 .5% ,可满足核素迁移实验中示踪剂In a way to determine bromide(Br -) in natural drinking mineral water, the method of determining of tracer Br - in underground water and loess was studied. According to the absorbance(A) of Br - at different concentrations and temperature, the highest detectable limit and the optimal temperatures were 3.40 mg/L and 30 ℃, respectively. Two kinds of flocculant were compared.The relative standard deviation (RSD) and the recovery were 1.43% and 94.2%～104.5% ,respectively.It has shown that this method is highly suitable for the determination of radionuclide migration.

关 键 词：核素迁移 示踪剂 溴离子 地下水 

分 类 号：O657.3[理学—分析化学]