A new rhodamine derivative-based chemosensor for highly selective and sensitive determination of Cu2+

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Author list: Puangploy P., Smanmoo S., Surareungchai W.

Publisher: Elsevier

Publication year: 2014

Journal: Sensors and Actuators B: Chemical (0925-4005)

Volume number: 193

Start page: 679

End page: 686

Number of pages: 8

ISSN: 0925-4005

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891668079&doi=10.1016%2fj.snb.2013.12.037&partnerID=40&md5=16ca658acb4a01de2ac2eea07f8c4e98

Languages: English-Great Britain (EN-GB)

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Abstract

A new rhodamine derivative (R1) has been synthesized by a hydrazone formation of rhodamine B hydrazide with pyrrole-2-carboxaldehyde and its binding affinity to metal ions were examined. R1 shows highly binding selectivity to Cu2+ over commonly coexistent metal ions in neutral aqueous-organic media including alkali, alkaline-earth and transition metals. The linear response to Cu2+ was obtained across the concentration range of 0.4-10 μM with the detection limit of 280 nM. Using newly synthesized probe R1, determination of Cu2+ concentration in drinking water and serums, and living cell imaging of Cu2+ were carried out. Also, by incorporating the R1 with filter paper, the sensor was performed in Cu 2+ spiked samples. © 2013 Elsevier B.V.

Keywords

Chemosensor, Copper (II) ion, Pyrrole, Rhodamine derivative, Turn-on fluorescence