【摘要】 本文报道在硅胶表面进行固-液相反应,合成硅胶键合二氮杂冠醚高效液相色谱固定相.采用有机元素分析、热分析、红外光谱、金属离子的络合容量测定等对键合材料进行鉴定和表征,并对其色谱性能进行了研究.更多还原

【Abstract】 A new silica gel bonded phase, propyloxy methyl-diaza-18-crown-6 silane bonded phase (DN18-C-6), was synthesized via solid-liquid phase three-step-reaction on the surface of prorous silica: the prorous silica gel grafting with γ-gllycidoxypropyltrimethoxysilane; the epoxy-substituted silica reacting by ethylenediamine; the reaction with polyethylene glycol ditosylate in the presence of sodium hydride as catalyst. It possessed good thermal and chemical stabilities and highly separation selectivity for aromatic amine and phenols and the components of nucleic acid. The complexation capacities of DN18-C-6 for sodium and postassium picrate, CuSO4, AgNO3 , Ni(NO3)2 were determined. It showed a good ability to complex with them.更多还原