空气中氢气体标准物质分析方法研究及性能评价

Study on Performance Evaluation and Analytical Methods of Hydrogen in Air Reference Materials

介绍了用Agilent 7890气相色谱热导型检测器(TCD)分析空气中氢气体标准物质的实验原理、方法和条件。建立空气中氢气相色谱分析方法和条件,考察了该气相色谱分析方法的精密度、方法的线性度。文中还给出该气体标准物质稳定性,随压力的稳定性变化的性能评价及量值不确定度评估。

In this paper, it is introduced that the analysis principles, experiment condition and methods of the hydrogen in air reference materials by Agilent 7890A GC thermal conductivity detector （TCD）. The analytical methods and experimen- tal conditions have been founded to analyze the hydrogen in air reference material. Through the optimization experiment of hydrogen in air reference materials, the precision and linearity of this method were determined. The uncertainty and per- formance evaluation of the stability and stability with pressure changes has also been evaluatod.