本文所介绍的气相色谱新方法能对 O_2、N_2、CO、CO_2、N_2O、SO_2、CH_4、C_2H_4及C_2H_6所有组分同时进行分析,其测定的含量范围无需预浓缩就可以从10%到10ppm的痕量浓度,这是以前的方法难得达到的水平。本方法测定的要点是,首先使被测样品经柱前分流,而后分别在两根并联柱上以同样的程序升温分离出各单组分。流出物再分 The new gas chromatography method described in this paper can simultaneously analyze all the components of O_2, N_2, CO, CO_2, N_2O, SO_2, CH_4, C_2H_4 and C_2H_6. The determination range of content can be from 10% to 10ppm Trace concentrations, which are rare attainable levels of previous methods. The main point of this method is that firstly, the sample to be tested is bifurcated through the column, and then each single component is separated by the same temperature program on two parallel columns respectively. The effluent is subdivided