硫化物测定结果不确定度的评定

Assessment of Uncertainty on the Determined Results of Sulfides

按照检测和校准实验室认可准则的要求,以亚甲基蓝分光光度法测定硫化物为例,分析了不确定度分量的来源,通过试验和计算确定了各不确定度分量值,最终给出了水质中硫化物测定结果的扩展不确定度。

In accordance with the requirement of accepted standards in the detection and calibration laboratory, determining the sulfides by methylene blue spectro-photometrie method is taken as an example in order to analyze the source of uncertainty components. And then every uncertainty component values are determined by the test and calculation. Finally, the paper presents the expanding uncertainty of determined result about sulfide in water.