A Novel Highly Selective“Turn-On”Fluorescence Sensor for Silver Ions Based on Schiff Base  

作　　者：Qi Lin Qingping Yang Bin Sun Taibao Wei Youming Zhang 

机构地区：[1]Key Laboratory of Eco-Environment-Related Polymer Materials,Ministry of Education of China,Key Laboratory of Polymer Materials of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou,Gansu 730070,China

出　　处：《Chinese Journal of Chemistry》2014年第12期1255-1258,共4页中国化学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Nos.21064006,21262032 and 21161018);the Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(No.IRT1177);the Natural Science Foundation of Gansu Province(No.1010RJZA018);the Youth Foundation of Gansu Province(No.2011GS04735);NWNU-LKQN-11-32.

摘　　要：A novel optical chemical sensor L was designed and synthesized for the determination of silver ions.The sensor L was derived from 1-naphthaldehyde and 3,4,5-tris(hexadecyloxy)benzohydrazide.The sensor L shows high sensitivity and selectivity for Ag+detection in comparison to other metal cations(Mg^(2+),Ca^(2+),Al^(3+),Cr^(3+),Fe^(3+),Co^(2+),Ni^(2+),Cu^(2+),Zn^(2+),Cd^(2+),Hg^(2+),Pb^(2+))and has no significant response to other common metal cations.Upon addition of Ag+,the fluorescent emission of the sensor L was enhanced dramatically but other metal cations had no same response.The detection limit for Ag+was 1.2×10^(−7) mol/L.Therefore,the sensor L is useful for Ag+detection with some advantages including sensitivity,selectivity,simplicity and low-cost.

关 键 词：silver ions detection fluorescent sensor high selectivity coordination mechanism high sensitivity 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]