A model 975 ICP direct reading spectrometer was used to determine the trace elements of Ca, Cd,Cr, Cu, Fe, Mg, Mn, Mo, Ni, Pb and Sn in U3O8 CRMs.

• 用975型ICP直读光谱仪同时测定八氧化三铀系列标准物质中Ca、Cd、Cr、Cu、Fe、Mg、Mn、Mo、Ni、Ph和Sn11种杂质。