Issue 2, 2015

The design of a simple fluorescent chemosensor for Al3+/Zn2+via two different approaches

Abstract

In this study, we have developed a simple fluorescent sensor, 7-(2′,4′-dihydroxybenzylideneimino)-4-methyl coumarin, which shows a high selectivity towards Al3+/Zn2+ over a wide range of metal ions. On the one hand, the fluorescence intensity of the probe shows significant fluorescence enhancement in the presence of Al3+ at 427 nm (λex = 357 nm), which might be mainly attributable to the hydrolysis of imines. On the other hand, the receptor exhibits a selective response to Zn2+ at 489 nm (λex = 405 nm), and a photoinduced electron transfer process (PET) is proposed to explain the observed spectral response.

Graphical abstract: The design of a simple fluorescent chemosensor for Al3+/Zn2+via two different approaches

Supplementary files

Article information

Article type
Paper
Submitted
03 ⴽⵜⵓ 2014
Accepted
21 ⵏⵓⵡ 2014
First published
21 ⵏⵓⵡ 2014

Anal. Methods, 2015,7, 716-722

The design of a simple fluorescent chemosensor for Al3+/Zn2+via two different approaches

J. Qin, L. Fan, B. Wang, Z. Yang and T. Li, Anal. Methods, 2015, 7, 716 DOI: 10.1039/C4AY02351J

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