Results, Discussion and Conclusion ะ The results of the rare earth elements in liquid
samples o f EDTA compound determined by ICP and XRF methods are shown in Table 1.
These samples are from the rare earth separation by ion exchange unit which contain few
rare earth elements in each sample. The results are closely agreed. However, in
comparision o f samples in different groups, the results show some deviation and the thin
film sample on filter paper technique could not reduce much o f the matrix effect. The
analysis of rare earth elements in liquid sample by XRF spectrometry essentially requires
the similarity o f standard and sample for accurate results. The further study o f the matrix
effect in this analysis will be carried out.