The analyzed sample has been prepared by adding quantitatively inside standard element Mo and aqua regia in the sample of diatom earth coat with palladium, the content of palladium determined has been by EDXRF .

• 在涂钯硅藻土样品中定量加入内标元素 Mo和王水 ,制成分析试样 ,用能量色散 X射线荧光( EDXRF)法测定钯含量。