桑色素-铝(Ⅲ)配合物在离子液体中的分子荧光行为  

The Fluorescent Properties of Morin-Al(Ⅲ) in Different Ionic Liquids

作　　者：苏文斌[1] 兰瑞家[1] 徐慧娟[1] 张从灿 SU Wen-bin;LAN Rui-jia;XU Hui-juan;ZHANG Cong-can(Langfang Normal University,Langfang 065000,China)

机构地区：[1]廊坊师范学院,河北廊坊065000

出　　处：《廊坊师范学院学报（自然科学版）》2018年第4期54-57,共4页Journal of Langfang Normal University(Natural Science Edition)

基　　金：河北省教育厅项目(QN2015206)

摘　　要：研究了桑色素-铝(Ⅲ)配合物在不同浓度的离子液体中的分子荧光行为。用微波法制备四种离子液体(溴代N-丁基吡啶、溴代N-十二烷基吡啶、溴代1-丁基-3-甲基咪唑、溴代1-十二烷基-3-甲基咪唑),用常规回流法制备了两种离子液体(N-丁基吡啶四氟硼酸盐、1-丁基-3-甲基咪唑四氟硼酸盐),用红外和核磁共振波谱进行了结构表征,探究了桑色素-铝(Ⅲ)在离子液体中的分子荧光行为。结果表明,桑色素-铝(Ⅲ)的荧光强度随离子液体浓度的增大而增强。六种离子液体中,溴代N-丁基吡啶的增敏效果最好,能使桑色素-铝的荧光强度增强9.27倍,这对于该荧光探针灵敏检测生物大分子具有重要意义。The effects of ionic liquids on the fluorescent properties of morin-Al(Ⅲ)were studied in this paper_Four ionic liquids(ILs),including N-butylpyridinium bromide,N-dodecylpyridinium bromide,l-butyl-3-methylimidazolium bromide and 1-dodecyl-3-methylimidazolium bromide were synthesized by microwave method and other two ILs were synthesized by traditional reflux method.All ILs were characterized by IR and NMR.The fluorescence properties of morin-aluminum(Ⅲ)complex were examined in six ionic liquids of different concentrations.The results showed that the fluorescence intensity of morin-aluminum(Ⅲ)increased with the increasing concentration of ionic liquids.Among these six ionic liquids,N-butylpyri-dinium bromide has the best sensitization effect.It can strengthen the fluorescence intensity of morin-aluminum(Ⅲ)remark-ably(9.27 times),which has important use for the sensitive determination of biomacromolecule by this fluorescence probe.

关 键 词：离子液体 桑色素-铝 荧光 

分 类 号：O65[理学—分析化学]