固相萃取/气相色谱法测定宽馏分混合油样中柴油馏分的饱和烃和芳烃含量

建立了不经馏分切割、直接测定宽馏分混合油样中柴油馏分的饱和烃和芳烃含量的固相萃取／气相色谱方法。应用中型FCC装置反应产物确立了适用于宽馏分混合油样的固相萃取条件、色谱分离条件以及谱图处理方法，并采用经典柱分离法对该方法进行了验证。验证结果表明，该方法具有较好的准确性和重复性。由于该方法不受样品量少的限制，可以用于测定微反液体产物中柴油馏分饱和烃和芳烃含量。

DETERMINATION OF SATURATES AND AROMATICS OF DIESEL FRACTION IN WIDE-BOILING CUTS BY SOLID EXTRACTION/GAS CHROMATOGRAPHY

A solid extraction/gas chromatography method was established for the determination of the contents of saturates and aromatics in diesel fraction prior to cutting the fraction from wide-boiling cuts. The suitable conditions of solid extraction, chromatographic separation, and the way of integration were obtained using the liquid resultant from a FCC pilot plant test. The classical column separation method was used to validate said method,and it was found that they were in good agreement,indicating said method provided good accuracy and repeatability. Since the amount of sample required for this method was minimum, it could be used to determine the contents of saturates and aromatics in the diesel fraction of liquid sample received by microactivity test.