一种光化学传感体系的构筑及其在水溶液中对草酸根的荧光识别  

Construction of a chemosensing ensemble and its fluorescent recognition for oxalate in water

作　　者：汤立军[1] 王楠楠[1] 郭娇娇[1] 唐炳涛[2] 

机构地区：[1]渤海大学化学化工与食品安全学院辽宁省功能化合物的合成与应用重点实验室,辽宁锦州121013 [2]大连理工大学精细化工国家重点实验室,辽宁大连116024

出　　处：《渤海大学学报（自然科学版）》2012年第3期225-229,272,共6页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金(No:21176029);辽宁省自然科学基金(No:20102004);教育部留学回国人员科研启动基金(教外司留[2010]1561);精细化工国家重点实验室开放课题资助项目(No:KF1014)

摘　　要：设计合成了以联二萘酚类双希夫碱化合物为配体的双核铜配合物4,用其作为二元羧酸阴离子的受体与荧光素钠构筑了化学传感体系.采用指示剂置换法,研究了该化学传感体系在水溶液中(HEPES 10 mM,pH=7.4)对二元羧酸阴离子的识别作用.所确立的化学传感体系对草酸根具有良好的选择性,其它共存的二元羧酸阴离子对草酸根的识别过程无明显干扰.Dinuclear copper complex 4 was prepared by using binaphthol based bisSchiff base as ligand, which was used as dicarboxylate receptor. A chemosensing ensemble was constructed by 4 and sodium fluoresceine. The dicarboxylate recognition property of the constructed chemosensing ensemble was examined in water solution （ HEPES l0 mM, pH = 7.4） through indicator displacement - assays. The chemosensing ensemble exhibits a good selectivity to oxalate and the recognition process is barely interfered by other coexisting dicarboxylates.

关 键 词：化学传感体系 二元羧酸阴离子 指示剂置换法 

分 类 号：O656.2[理学—分析化学]