类卟啉大环席夫碱识别铜离子的荧光光谱及其应用  

Fluorescence spectroscopy of porphyrin-like macrocyclic Schiff bases for the identification of copper and its application

作　　者：张迪 王志梅 廖力夫[1] 肖锡林[3] ZHANG Di;WANG Zhimei;LIAO Lifu;XIAO Xilin(School of Chemistry and Chemical Engineering,University of South China,Hengyang 421001;School of Resource&Environment and Safety Engineering,University of South China,Hengyang 421001;Key Laboratory of Hengyang for Health Hazard FactorsInspection and Quarantine,University of South China,Hengyang 421001)

机构地区：[1]南华大学化学化工学院,衡阳421001 [2]南华大学资源环境与安全工程学院,衡阳421001 [3]南华大学,衡阳市健康危害因子检验检疫新技术研究重点实验室,衡阳421001

出　　处：《分析试验室》2020年第12期1370-1374,共5页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金项目(11475079)资助。

摘　　要：采用邻苯二胺和2,6-吡啶二甲醛合成了一种大环席夫碱分子探针BP-MSB,并研究了它的结构和光谱性质。实验结果表明,探针BP-MSB对Cu^2+具有较高选择性,体系荧光强度与0~5.0μmol/L范围内Cu^2+具有很好的线性关系,线性方程为F=1659.97801-442.0364c,相关系数r^2=0.995,检出限(LOD)为8.33 nmol/L。方法已用于湘江水样中Cu^2+的检测。In this paper,the macrocyclic Schiff base ligand BP-MSB was synthesized using o-phenylenediamine and 2,6-pyridinedicarbaldehyde,and its structure and spectral properties were studied.Experimental studies showed that the ligand BP-MSB had a high selectivity for Cu^2+,and the fluorescence intensity had a good linear relationship with the concentration of Cu^2+in the range of 0-5.0μmol/L.The linear equation was F=1659.97801-442.0364 c(μmol/L),the correlation coefficient(r^2)was 0.995,with the limit of detection(LOD)of 8.33 nmol/L.The method has been successfully applied to the detection of Cu^2+in water samples of Xiangjiang river.

关 键 词：大环席夫碱 铜离子 分子探针 荧光猝灭 配位作用 

分 类 号：O657.3[理学—分析化学] O661.1[理学—化学]