2,4,6-三硝基苯酚改性锆铝复合氧化物固定相分离富勒烯的色谱性能研究  

Preparation and Evaluation of 2,4,6-Trinitrophenol-modified Zirconia- Alumina for High Performance Liquid Chromatography and Its Application in the Separation of Fullerenes

作　　者：万剑砥[1] 冯钰錡[1] 胡玉玲[1] 达世禄[1] 王忠华[1] 

机构地区：[1]武汉大学化学与分子科学学院,武汉430072

出　　处：《高等学校化学学报》2002年第7期1259-1263,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 9875 0 2 0 );教育部博士学科点基金资助

摘　　要：制备了用于分离 C6 0 和 C70 的 2 ,4,6-三硝基苯酚改性锆铝复合氧化物高效液相色谱固定相 ,考察了流动相中甲苯的含量、柱温及流速对 C6 0 和 C70 分离的影响 ,同时比较了酸腐蚀前后锆铝复合氧化物基质对分离的影响 .结果表明 ,2 ,4,6-三硝基苯酚改性酸腐蚀后锆铝复合氧化物填料对富勒烯表现出较强的分离能力 ,具有作为富勒烯制备分离的潜力 .The zirconia alumina composites, prepared by means of sol gel process, were modified with 2,4,6 trinitrophenol and used as π acidic stationary phases for the separation of C 60 and C 70 . The influence of the mobile phase(toluene cyclohexane) composition, the column temperature and the different flow rates on the separation of C 60 and C 70 was examined. At the same time, the effect of the composites, which were treated and untreated with nitric acid, on the separation was also investigated. The results show that the acid treated zirconia alumina composite, after being modified with 2,4,6 trinitrophenol, exhibits advantage in the separation of C 60 and C 70 , and is a potential packing material for separation of fullerenes in preparation scale.

关 键 词：分离 色谱性能 高效液相色谱 改性 锆铝复合氧化物 固定相 2 4 6-三硝基苯酚 富勒烯 纯化 

分 类 号：O635.1[理学—高分子化学] O657.7[理学—化学]