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Issue 2, 2015
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The design of a simple fluorescent chemosensor for Al3+/Zn2+via two different approaches

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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

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Publication details

The article was received on 03 Oct 2014, accepted on 21 Nov 2014 and first published on 21 Nov 2014


Article type: Paper
DOI: 10.1039/C4AY02351J
Citation: Anal. Methods, 2015,7, 716-722
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    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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