以正己烷为流动相，环己烯为改性剂，Ａｇ－ＳＣＸ柱为分离柱，使不同环数的芳烃组分得到基线分离。芳烃组分的洗脱过程实质上是一个与流动相中环己烯的竞争吸附过程，其中不同环数的芳烃与Ａｇ＋形成配合物的配位数不同。此外，各芳烃组分在Ａｇ－ＳＣＸ柱上的吸附强度随着芳烃环数的增加而增加。 Using n-hexane as the mobile phase and cyclohexene as the modifier, the Ag-SCX column was used as the separation column to separate the aromatic components with different ring numbers from each other. The elution process of aromatics is essentially a competitive adsorption process with cyclohexene in the mobile phase, in which the coordination number of the different aromatic rings is different from that of Ag +. In addition, the adsorption strength of each aromatic component on the Ag-SCX column increases with the increase of the aromatic ring number.