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异丙基甲苯是以甲苯和丙烯为原料合成甲酚的主要中间体之一。以甲苯和丙烯合成甲酚是通过下列几步进行的: 反应中生成的异丙基甲苯含有邻、间、对三种异构体,其性质很相似,这给分析带来困难,特别是一般化学分析更难于解决。根据资料报导可以采用气相色谱进行分析。我们参考了资料,并根据现有设备条件,用100型气相色谱仪气焰离子化检定器,由填充色谱柱Ⅰ:10％有机皂土—341米和填充柱Ⅱ:10％ββ′-亚氨基二丙腈1米串联,在85℃柱温下操作,使异丙基甲苯的三种异构体获得良好分离,分离时间30分钟。以叔丁苯为内标
Isopropyltoluene is one of the main intermediates for the synthesis of cresols from toluene and propylene. The synthesis of cresols from toluene and propylene is carried out in the following steps: The cumene produced in the reaction contains three isomers, o-, m- and p-isomers, which are very similar in nature and give rise to difficulties in the analysis, especially in general Chemical analysis is more difficult to solve. According to the data reported can be analyzed by gas chromatography. We have made reference to the data and used the 100 Gas Chromatograph Gas Flame Ionization Detector, based on existing equipment conditions, consisting of Column I: 10% organic bentonite - 341m and packed column II: 10% Dipropionitrile was placed in series with 1 meter column and operated at a column temperature of 85 ° C to obtain a good separation of the three isomers of isopropyltoluene over a period of 30 minutes. Tert-butyl benzene as an internal standard