A carbazole based “Turn on” fluorescent sensor for selective detection of Hg2+ in an aqueous medium

K. Kala; N. Manoj

doi:10.1039/C5RA27530J

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A carbazole based “Turn on” fluorescent sensor for selective detection of Hg²⁺ in an aqueous medium†

K. Kala^a and N. Manoj*^a

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* Corresponding authors

^a Department of Applied Chemistry, CUSAT, Kochi-682 022, Kerala, India
E-mail: manoj.n@cusat.ac.in

Abstract

We developed a multimode Hg²⁺ selective sensor system based on carbazole-barbituric acid conjugate (CBA). Its colorimetric and fluorescent behavior for Hg²⁺ ions in aqueous medium was investigated. Upon Hg²⁺ binding, CBA exhibited significant change in the absorption spectrum along with an enhanced emission at 593 nm. This allows the selective and sensitive detection of Hg²⁺ without any interference from other metal ions.

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Article information

DOI: https://doi.org/10.1039/C5RA27530J
Article type: Communication
Submitted: 23 des. 2015
Accepted: 21 feb. 2016
First published: 22 feb. 2016

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RSC Adv., 2016,6, 22615-22619

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A carbazole based “Turn on” fluorescent sensor for selective detection of Hg²⁺ in an aqueous medium

K. Kala and N. Manoj, RSC Adv., 2016, 6, 22615 DOI: 10.1039/C5RA27530J

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