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对电感耦合等离子体质谱法(ICP-MS法)测定高纯黄金中铅含量的测量不确定度进行了评定。对试料的称重、标准溶液的配制、工作曲线的拟合、测量重复性的各分量的不确定度进行分析与计算,通过合成得到测量结果的合成不确定度与扩展不确定度。

The uncertainty of quantitative determination of lead in fine gold by inductively coupled plasma mass spectrometry (ICP-MS) was evaluated. The impacts of major sources of uncertainty were discussed and calculated, such as weighing, standard solution, standard curve and measurement repeatability. Both of the combined uncertainty and the expanded uncertainty were also obtained by combining every calculated components of uncertainty.

参考文献

[1] GB/T 25934.2-2010.高纯金化学分析方法第 2 部分:ICP-MS-标准加入校正-内标法测定杂质元素的含量[S].北京:中国标准出版社,2011.
[2] 国家质量技术监督局计量司.测量不确定度评定预表示指南[M].北京:中国计量出版社,2003
[3] JJF 1059-1999.测量不确定度评定与表示[S].北京:中国计量出版社,1999.
[4] JJF 1135-2005.化学分析测量不确定度评定[S].北京:中国计量出版社,2005.
[5] 化学分析中不确定度的评估指南[S].北京:中国实验室国家认可委员会,2006.
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