Simulation study of the chemical forms of Neptunium(Np) and plutonium in groundwater from a borehole in the northwest region 镎、钚在西北某区地下水中化学形态的模拟计算
Only two, neptunium ( 93 ) and plutonium ( 94 ), occur in nature, and only as traces in uranium ores as a result of neutron irradiation. 自然界里只有錼(93)和钸(94)两种超铀元素,而且只以痕量存在于铀的矿物中,是受中子辐照后的产物。
Three rapid analytical methods for measuring uranium, plutonium and neptunium are established respectively. 并建立了分别测定铀、钚、镎的三个快速分析方法。
Two alternative flow routes are used for measuring plutonium ( or neptunium ) and uranium respectively. 两套可供选择的流路分别用于测钚(或镎)和铀。
Spectrophotometry for photochemistry study of neptunium in organic system 分光光度法对有机体系中镎的光化学研究