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A Novel Highly Selective "Turn‐On" Fluorescence Sensor for Silver Ions Based on Schiff Base
Author(s) -
Lin Qi,
Yang Qingping,
Sun Bin,
Wei Taibao,
Zhang Youming
Publication year - 2014
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201400601
Subject(s) - chemistry , schiff base , detection limit , fluorescence , selectivity , metal ions in aqueous solution , metal , ion , turn (biochemistry) , inorganic chemistry , analytical chemistry (journal) , stereochemistry , catalysis , chromatography , organic chemistry , biochemistry , physics , quantum mechanics
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.