The main sources of the measurement uncertainty by XRF are analysed and some factors impacting on the uncertainty are discussed, which is good for developing the measurement uncertainty in the actual work.

• 着重分析了采用X射线荧光能谱法测定贵金属含量时测量结果不确定度的主要来源，并探讨了几种因素对不确定度的影响，有利于在实际检测中对其进行合理的评定工作。