【摘要】 <正> 石油产品和煤液化油烃族组成分析通常采用经典色谱法和高效掖相色谱法。经典色谱法的主要缺点是溶剂消耗大,分析时间长。近年来,国内外色谱工作者用HPLC方法研究了石油及合成油的族组成。J.C.Suatoni等人采用各种方法来分离各族烃,但也只能将试样分为烷烃、烯烃、芳烃三大族,未能将芳烃按环数进一步细分。在检测方面更多还原

【Abstract】 In this paper, a rapid method for quantitative determination of hydrocarbon group composition of coal liquefied oils has been developed by analytical scale HPLC. Hexane-soluble compounds were separated into saturates, monocyclicaroma-tics, dicyclicaromatics, fluorene groups, tricyc-licaromatics and tetracyclicaromatics on a Lich-rosorb NH2 column and detected with a refractive index detector. The response factor of each group compound was determined by using selected model compounds. The quantitative analysis was carried out by external standard method. The contents of the polar compounds were obtained by subtracting the content of all classes of eluted compounds from the amount of total sample. The aromatics can be subdivided by this method.更多还原