A highly selective and sensitive benzothiazole‐based ‘turn‐on’ fluorescent sensor for Hg 2+  ion | Zendy

Erdemir Serkan | Zendy; Malkondu Sait | Zendy; Alici Onder | Zendy

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A highly selective and sensitive benzothiazole‐based ‘turn‐on’ fluorescent sensor for Hg 2+ ion

Author(s) -

Erdemir Serkan,

Malkondu Sait,

Alici Onder

Publication year - 2015

Publication title -

coloration technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.297

H-Index - 49

eISSN - 1478-4408

pISSN - 1472-3581

DOI - 10.1111/cote.12122

Subject(s) - benzothiazole , fluorescence , chemistry , ion , aqueous solution , metal ions in aqueous solution , fourier transform infrared spectroscopy , proton nmr , analytical chemistry (journal) , chromatography , stereochemistry , organic chemistry , physics , quantum mechanics

A simple benzothiazole‐based fluorescent probe ( TDA ) for the determination of Hg 2+ ion in aqueous solutions was synthesised in one step and characterised by 1 H NMR , 13 C NMR , APT , COSY , FTIR , and elemental analysis. TDA shows a significant fluorescence change upon the interaction of Hg 2+ ion in DMF –water (v/v = 1/1), while only minor changes in fluorescence intensity are observed with 18 other metal ions. Fluorescence enhancement by a factor of 15 is achieved upon selective interaction with Hg 2+ ion. The Hg 2+ ion detection process is found to be pH dependent; therefore, TDA could be feasible within a pH range of 4.0–7.0.

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