高纯稀土试剂中稀土和非稀土杂质的PIXE分析是稀土元素分析的一个特殊课题。特殊性在于基体物质是稀土元素自身。这一特殊性给PIXE分析带来了微小的方便和巨大的困难。基体稀土元素可被直接用作内标。在PIXE系统进行了待分析元素相 PIXE analysis of rare earth and non-rare earth impurities in high purity rare earth reagents is a special subject of rare earth element analysis. The particularity is that the matrix material is the rare earth element itself. This particularity has brought little convenience and great difficulty to PIXE analysis. Matrix rare earth elements can be used directly as an internal standard. The PIXE system has been analyzed for the element phase