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.
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.
