液氧、液空中微量乙炔的测定

Determination of Trace Ethyne in Liquid Oxygen or Liquid Air

摘要: 采用GDX-501为固定相，用保留值和加入已知物增加峰高法进行定性，用外标法进行定量，建立了气相色谱法测定液氧、液空中微量乙炔含量的方法。该法具有操作简便、重现性好、准确度高的优点。

Abstract: Determination of ethyne in liquid oxygen or liquid air by GC was introduced in this paper,where GDX-501 was used as fixed phase. The retention time, or the method of increasing peak height by adding the known substance was used in qualitative analysis, ES