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在国产仪器和设备上建立了气相色谱法分析催化裂化汽油烃族组成的分析方法。采用N,N-双(a-氰乙基)甲酰胺为固定液的色谱柱将样品中的非芳烃和芳烃分离。以水润湿氮气来稳定高氯酸-高氯酸汞吸收剂,这种吸收剂对烯烃显示了良好的吸收选择性。方法通过两次进样计算出饱和烃、烯烃、芳烃含量。一次进样的分离时间在10分钟左右。与荧光色谱法相比本方法有更好的准确度与重复性。
In the domestic equipment and equipment to establish a gas chromatography analysis of catalytic cracking gasoline hydrocarbon composition analysis. Non-aromatic and aromatic hydrocarbons in the sample were separated on a column using N, N-bis (a-cyanoethyl) formamide as a stationary phase. Perchloric acid perchloric perchlorate absorbers are stabilized with water moistened with nitrogen, which shows good absorption selectivity to olefins. Methods The saturated hydrocarbons, olefins and aromatics were calculated by two injections. One injection of the separation time of about 10 minutes. This method has better accuracy and repeatability than fluorescent chromatography.