GC-DPSCD法分析低温甲醇洗装置气体痕量硫化物含量的探讨

对气相色谱双等离子体硫化学发光检测器(GC-DPSCD)法测定低温甲醇洗装置气体痕量硫化物的影响因素进行了探讨,包括载气种类及流量的选择、柱温的确定、双等离子体燃烧器条件的优化等。通过对上述影响因素的控制和优化,建立了良好的工作曲线,得到了较低的检出限,保证了痕量硫化物分析结果的准确度和精密度,满足了分析要求。

Determination of trace sulfide content in gas of low temperature methanol washing unit by GC-DPSCD

By controlling and optimizing the influencing factors affecting the determination, such as the type and flow rate of carrier gas, column temperature and the conditions of dual plasma burner, a good working curve was established, and a low detection limit was obtained, which ensured the accuracy and precision of the analysis results of trace sulfide, and met the analysis requirements.