【摘要】 采用化学分离、电沉积制源和α谱测量联合分析方法对我国主要食品中²³⁷Np放射性含量进行了分析调查。调查结果表明,我国主要食品中²³⁷Np含量水平为10^-4-10^-3Bq·kg^-1。更多还原

【Abstract】 The content of ²³⁷Np in 13 kinds of foodstuffs is determined by a combined analysis method.Frist, the ²³⁷Np in the foodstuff dust is radiochemically separated and enriched, then the α-sourceof ²³⁷Np is prepared by electrodeposition and the α-particle is detected using a Au（Si） detector.The analytical results show that the content of ²³⁷Np in such foodstuffs is in range of 10^-4--10^-3Bq·kg^-1.更多还原