标题:
X射线荧光光谱法测定铝土矿中组分不确定度评估Uncertainty Evaluation for the Determination of Components in Bauxite Samples by X-Ray Fluorescence Spectrometry
作者:
袁建, 夏晨光, 刘香英, 刘高辉
关键字:
X射线荧光光谱法, 铝土矿, 不确定度X-Ray Fluorescence Spectrometry, Bauxite, Uncertainty
期刊名称:
《Advances in Analytical Chemistry》, Vol.6 No.2, 2016-05-23
摘要:
本文以X射线荧光光谱法测定铝土矿中Al2O3为例，详细论述该方法在分析过程可能产生的不确定来源，并对各分量不确定进行了评定。通过研究可知，X射线荧光光谱法测定铝土矿中Al2O3时不确定来源有许多，主要有测量不确定度引入的不确定度、标准样品引入的不确定度、称量误差导致的不确定度等方面，本文通过计算出各分量的不确定度，对各个分量不确定度进行定量分析，最后合成得到测量结果的扩展不确定度。
The study discussed the source of uncertainty about measuring the Al2O3 of bauxite by X-ray Fluo-rescence Spectrometry in detail; moreover, we assessed the uncertainty of all components possibly. According to the research we could know there were several reasons that caused the uncertainty about measuring the Al2O3 by X-ray Fluorescence Spectrometry, such as the method of measurement, standard reference materials, weighing error, etc. The uncertainty of each compo-nent was calculated and analyzed quantitatively; the extended uncertainty of measurement results was obtained from synthesis of each uncertainty source.