氢化物发生-原子荧光光谱法测定进口未焙烧黄铁矿中总砷含量的不确定度评定  

Evaluation of the Measurement Uncertainty for the Determination of Arsenic in Unroasted Pyrites for Import by Hydride Generation-Atomic Fluorescence Spectrometry

作　　者：吕晓华[1] 

机构地区：[1]阿拉山口出入境检验检疫局

出　　处：《光谱实验室》2013年第6期3209-3214,共6页Chinese Journal of Spectroscopy Laboratory

摘　　要：以氢化物发生-原子荧光光谱法测定进口未焙烧黄铁矿中总砷含量为例,建立了数学模型,对测试过程中的各个分量进行分步计算和合成,计算出扩展不确定度为0.007%,评定结果表明校准曲线是氢化物发生-原子荧光光谱法测定进口未焙烧黄铁矿中总砷含量不确定度的主要影响因素。According to determination of arsenic in unroasted pyrites by hydride generation-atomic fluorescence spectrometry, a mathematical model was established for calculating the components of uncertainty separated or for integrating. The expanded-uncertainty was 0. 007%. The evaluation indicated that the major source of uncertainty was the uncertainty of standard curve.

关 键 词：不确定度 总砷 氢化物发生-原子荧光光谱法 未焙烧黄铁矿 

分 类 号：O657.31[理学—分析化学]