An agarose gel upon which a water-soluble cyclophane having three quaternary nitrogens was immobilized, Gel-QCP (3), was synthesized and its properties as a chromatographic stationary phase were studied. The affinity of Gel-QCP for several neutral and anionic aromatic guests was broadly consistent with that of the parent cyclophane (2). This suggests that the guest separation is attributable to the formation of inclusion complexes between the cyclophane moiety of Gel-QCP and the guests. Non-specific electrostatic interaction also influences anionic guests, but this effect is reduced by using an aqueous solution of NaCl as an eluent.
合成了一种
琼脂糖凝胶,其上固定了一种具有三个季氮的
水溶性环
芳烃,即Gel-QCP(3),并研究了其作为色谱固定相的特性。Gel-QCP对几种中性及阴离子芳香族客体的亲和力与母体环
芳烃(2)的亲和力大致一致。这表明客体分离归因于Gel-QCP的环
芳烃部分与客体之间形成包合复合物。非特异性静电相互作用也会影响阴离子客体,但使用NaCl
水溶液作为洗脱液可以减少这种影响。