气相色谱永久性气体分析应用实例

Application examples of gas chromatography for permanent gas analysis

使用Agilent 7820A气相色谱仪,解决粗煤气气体组成中低浓度硫化氢和羰基硫的含量分析。一般在分析时,常采用硫化物和永久性气体单独测定,再将结果进行校正归一处理。本方法通过对色谱仪进行改进,完成一台仪器同时分析并归一化处理结果,解决了样品中微量水分的出峰干扰问题,提高了定量结果的准确性。

Agilent 7820A gas chromatograph was used to solve the content analysis of low concentration hydrogen sulfide and carbonyl sulfur in crude gas composition.In general,the determination of sulfide and permanent gas is usually done separately,and then the results are corrected and normalized.By improving the chromatograph,this method completes the simultaneous analysis and correction of the results with an instrument,solves the problem of the peak interference of the trace moisture in the sample,and improves the accuracy of the quantitative results.