Issue 5, 2019

A highly selective and instantaneously responsive Schiff base fluorescent sensor for the “turn-off” detection of iron(iii), iron(ii), and copper(ii) ions

Abstract

A new and tri-responsive fluorescent Schiff base probe (DBAB) has been designed and developed for the recognition of iron(III) ions (Fe3+), iron(II) ions (Fe2+) and copper(II) ions (Cu2+) simultaneously. This sensor displays a favorable selectivity for Fe3+, Fe2+ and Cu2+ ions over a range of other common metal cations in DMF solution, leading to prominent fluorescence on–off. The detection limits were 2.17 × 10−6 M for Fe3+, 2.06 × 10−6 M for Fe2+ and 2.48 × 10−6 M for Cu2+ respectively. This tri-responsive fluorescent probe for Fe3+, Fe2+ and Cu2+ was distinguished by further reduction of the ascorbic acid. The recognition mechanism of DBAB toward Fe3+, Fe2+ and Cu2+ has been investigated in detail by Job plot measurements and 1H NMR.

Graphical abstract: A highly selective and instantaneously responsive Schiff base fluorescent sensor for the “turn-off” detection of iron(iii), iron(ii), and copper(ii) ions

Supplementary files

Article information

Article type
Paper
Submitted
20 11月 2018
Accepted
11 12月 2018
First published
11 12月 2018

Anal. Methods, 2019,11, 642-647

A highly selective and instantaneously responsive Schiff base fluorescent sensor for the “turn-off” detection of iron(III), iron(II), and copper(II) ions

X. Zhu, Y. Duan, P. Li, H. Fan, T. Han and X. Huang, Anal. Methods, 2019, 11, 642 DOI: 10.1039/C8AY02526F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements