摘要
系统分析了便携式气相色谱检测环境空气中H2S浓度的不确定度来源,对各不确定度分量进行了计算,提出了该方法的合成不确定度和扩展不确定度。通过对各不确定度分量的分析,表明不确定度主要来源于气袋体积及进样重复性引入的不确定度。
This paper systematically analyses the main sources of uncertainty of determination of H2S in ambient air by the portable gas chromatography.Simultaneously,each uncertainty components are calculated,and the component uncertainty and combined uncertainty of this method are also proposed.Based on the analyses of each uncertainty component,the main sources of uncertainty of determination are found to be the volume of airbag and repeatability of introducing sample.
出处
《黑龙江环境通报》
2013年第1期17-19,共3页
Heilongjiang Environmental Journal
