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本工作使用沙鱼烷玻璃毛细管色潜柱,对甲醇合成汽油进行定性定量分析。首先测定21个已知化合物的保留指数,与文献值对照以确定文献值的可靠性,然后把待测样品各色谱峰的保留指数与文献值对照进行定性,并对其中若干组份依次按沸点用逐段加入标样的方法进行验证,最后对部分组份尤其是仍未定性的组份用色质方法进行定性。待测样品经毛细管柱分离共得到121个峰,定性84个峰,其量占整个样品的95％左右。利用40—100℃程序升温,可在3小时内作完一次全分析。
This work using sand paraffin glass capillary color column, qualitative and quantitative analysis of methanol synthesis of gasoline. First, the retention index of 21 known compounds was determined and compared with the literature values to determine the reliability of the literature values. Then, the retention index of the chromatographic peaks of the samples to be tested was compared with the literatures, and some of the constituents were analyzed by boiling point The method of adding standard sample by section was used for verification. Finally, some components, especially those not yet characterized, were qualitatively analyzed by colorimetric method. The sample was separated by capillary column, a total of 121 peaks, qualitative 84 peaks, the amount of the entire sample of about 95%. Using 40-100 ℃ temperature program, can be done within 3 hours a full analysis.