甲烷化微量一氧化碳和二氧化碳色谱分析方法的改进

IMPROVEMENT OF CHROMATOGRAPHIC METHOD TO DETERMINE TRACE AMOUNT OF CO AND CO_2 DURING METHANATION

改进一种使用固定相Porapak-Q长4 m的不锈钢填充柱,选择适当的载气压力、温度等操作条件和主要参数的气相色谱分析方法,实现合成甲烷化气体样品中微量CO和CO_2的色谱分析。该分析方法基线稳定、组分分离完全、色谱柱效高、检测灵敏度好、定量准确,取得了良好的试验结果。

The determination of trace amount of CO and CO_2 in methanation gas sample by chromatographic method was achieved by improving a Porapak Q, a fixed phase 4 meter long stainless steel packed column, and selecting appropriate carrier gas pressure, temperature and main parameters. This method results in stable baseline, complete separation of component, high efficiency of chromatographic column, good detection sensitivity and high quantitative accuracy.