A new Schiff base fluorescent indicator for the detection of Mg2+ and its application to real samples

A new Schiff base fluorescent indicator for the detection of Mg2+ and its application to real... A new Schiff base fluorescence probe, 3-Allylsalicylaldehyde salicylhydrazone (L), for Mg2+ was designed and synthesized. The fluorescence of the sensor L was enhanced remarkably by Mg2+ with 2:1 binding ratio, and the binding constant was determined to be 1.02 × 107 M−1. Probe L had high sensitivity for Mg2+ in a solution of DMF/water (4:1, v/v, pH 7.5), and the detection limit was 4.88 × 10−8 mol/L. Common coexistent metal ions, such as K+, Na+, Ag+, Ca2+, Zn2+, Ba2+, Bi2+, Cu2+, Ni2+, Hg2+, Fe3+ , and Al3+, showed little or no interference on the detection of Mg2+ in solution. The fluorescence probe L, which was successfully used for the determination of trace Mg(II) in real samples, was shown to be promising for liquid-phase extraction coupled with fluorescence spectra. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

A new Schiff base fluorescent indicator for the detection of Mg2+ and its application to real samples

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Publisher
Springer Netherlands
Copyright
Copyright © 2016 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-016-2489-8
Publisher site
See Article on Publisher Site

Abstract

A new Schiff base fluorescence probe, 3-Allylsalicylaldehyde salicylhydrazone (L), for Mg2+ was designed and synthesized. The fluorescence of the sensor L was enhanced remarkably by Mg2+ with 2:1 binding ratio, and the binding constant was determined to be 1.02 × 107 M−1. Probe L had high sensitivity for Mg2+ in a solution of DMF/water (4:1, v/v, pH 7.5), and the detection limit was 4.88 × 10−8 mol/L. Common coexistent metal ions, such as K+, Na+, Ag+, Ca2+, Zn2+, Ba2+, Bi2+, Cu2+, Ni2+, Hg2+, Fe3+ , and Al3+, showed little or no interference on the detection of Mg2+ in solution. The fluorescence probe L, which was successfully used for the determination of trace Mg(II) in real samples, was shown to be promising for liquid-phase extraction coupled with fluorescence spectra.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Mar 3, 2016

References

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