本文介绍了采用恒温气相色谱法,以 TDX-01碳分子筛和401有机担体两根色谱柱,分离及定量测定了以丙烯为原料,合成丙烯醛反应尾气中的丙烯、一氧化碳、二氧化碳和空气。方法较简单,快速,不需催化转化,不需程序升温设备。测得低浓度丙烯的相对误差为≤2%,最小检出浓度为0.1%,能满足生产控制分折的要求。 This paper introduces the separation and quantitative determination of propylene, carbon monoxide, carbon dioxide and air in the reaction of propylene acrolein by using constant temperature gas chromatography, TDX-01 carbon molecular sieve and 401 organic carrier. The method is simple, fast, without catalytic conversion, without the need for temperature programming equipment. The relative error of low concentration propylene was ≤2% and the minimum detection concentration was 0.1%, which could meet the requirements of production control.