基于TMPyP卟啉与SDS组装体的铜离子荧光传感  

Fluorescence Sensing of Copper Ion Based on TMPyP Porphyrin and SDS Assembly

作　　者：闫伦丽 张国梅[1] YAN Lunli;ZHANG Guomei(School of Chemistry and Chemical Engineering,Shanxi University,Taiyuan 030006,China)

机构地区：[1]山西大学化学化工学院

出　　处：《山西大学学报（自然科学版）》2019年第3期599-604,共6页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(21475080,21575084)

摘　　要：meso-四(N-甲基吡啶基)卟啉(TMPyP)在十二烷基硫酸钠(SDS)的水溶液中具有强的荧光发射,文章考察了铜离子加入TMPyP-SDS组装体后,体系荧光强度的变化。研究表明:TMPyP-SDS组装体系中加入铜离子后,体系的荧光强度发生显著的猝灭,从而建立了选择性识别铜离子(Cu^2+)的荧光传感体系。该检测方法的相对标准偏差为1.5%(10μmol/L),线性范围5.2×10^-6~3.3×10^-4 mol/L,检出限为7.63×10^-7 mol/L。该组装体系有望实现对水溶液中铜离子的定量检测。Using sodium dodecylsulfate(SDS)as a protective medium,the selective recognition of Cu^2+ is realized based on fluorescence quenching of TMPyP-SDS assembly system.The linear range was from 5.2×10^-6~3.3×10^-4 mol/L.The limit of detection is 7.63×10^-7 mol/L(S/N=3),and the precision is evaluated as the relative standard deviation(R.S.D.)in five replicates of a sample containing 10μmol/L of Cu^2+,and the results is 1.5%.The system could be potentially used for rapid determination of Cu^2+ in water samples.

关 键 词：甲基吡啶基卟啉 十二烷基硫酸钠 铜离子 荧光猝灭 

分 类 号：O436[机械工程—光学工程]