【摘要】 目的对原子荧光法测定头发中砷的方法,进行测量结果不确定度分析。方法按JJF 1059-1999规定,运用测量不确定度理论,建立数学模型。结果扩展不确定度为:U=0.033μg/g。结论该不确定度评定方法在实际工作中有较好的实用价值。更多还原

【Abstract】 [Objective]To analyze the uncertainty of measuring arsenic in hair by Atomic Fluorescence Spectrometry.[Methods]According to JJF 1059-1999,the mathematical model was established by using Theory of Uncertainty in Measurement.[Results]The expanded uncertainty was U=0.033 μg/g.[Conclusion]This uncertainty evaluation method has good value in the practical work.更多还原