【摘要】 利用放射性192 Ir示踪技术及近紫外 -可见吸收光谱分析 ,研究了阴离子交换树脂对海水中铱的吸附行为 ,建立了天然海水样品中铱的阴离子交换预浓集流程 ,回收率达 90 %。在超净条件下 ,采用此流程结合中子活化分析测得黄海近岸海水样品中的铱浓度为 2 .6× 10 - 14 g/mL。更多还原

【Abstract】 The adsorption behaviors of iridium on an anion resin were studied through 192 Ir radiotracer technique and near ultra-violet and visible spectrum analysis. An anion exchange preconcentration procedure for iridium in natural seawater sample was established, and the recovery reached 90%. Under ultra-clean condition, the Ir concentration in a coastal seawater sample derived from the China Yellow Sea was determined by neutron activation analysis after this preconcentration procedure to be 2.6×10 -14 g/mL.更多还原