Abstract: Major and minor elements of nanometer powder ZrO₂-CeO₂-La₂O₃ were determined by X-ray fluorescence analysis using powder pellets preparation. The X-ray fluorescence intensities of analytes in nanometer powder increased with the increasing of grinding time or pressure. X-ray fluorescence intensities of nanometer powder calcinated at different temperatures were also analyzed, and no distinct differrence between these intensities was found. It is concluded that XRF intensity of nanometer powder depends on the agglomeration effects.

Key words: X-ray fluorescence analysis, nanometer powder, agglomeration effects