Benzothiazole based multi-analyte sensor for selective sensing of Zn2+ and Cd2+ and subsequent sensing of inorganic phosphates (Pi) in mixed aqueous medium

Rupinder Singh; Abhijit Gogoi; Gopal Das

doi:10.1039/C6RA22840B

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Benzothiazole based multi-analyte sensor for selective sensing of Zn²⁺ and Cd²⁺ and subsequent sensing of inorganic phosphates (Pi) in mixed aqueous medium†

Rupinder Singh,^a Abhijit Gogoi^a and Gopal Das

*^a

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* Corresponding authors

^a Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
E-mail: gdas@iitg.ernet.in
Fax: +91 361 2582349
Tel: +91 361 2582313

Abstract

A rationally designed simple benzothiazole based Schiff base probe (L) exhibits distinct selective “turn-on” emission responses in the presence of Zn²⁺ and Cd²⁺ ions. Emission wavelengths over 600 nm were achieved with both the metal ions, which makes the system more viable for the study in biological complex medium. Further “turn-off” fluorometric response for the inorganic phosphates was achieved with both the L–Zn²⁺ and L–Cd²⁺ ensembles. The entire sensing process is perceptible to the naked eye and is viable in mixed buffered medium at physiological pH.

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Article information

DOI: https://doi.org/10.1039/C6RA22840B
Article type: Paper
Submitted: 13 Sep 2016
Accepted: 18 Nov 2016
First published: 21 Nov 2016

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RSC Adv., 2016,6, 112246-112252

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Benzothiazole based multi-analyte sensor for selective sensing of Zn²⁺ and Cd²⁺ and subsequent sensing of inorganic phosphates (Pi) in mixed aqueous medium

R. Singh, A. Gogoi and G. Das, RSC Adv., 2016, 6, 112246 DOI: 10.1039/C6RA22840B

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