A new rhodamine-based colorimetric chemosensor for naked-eye detection of Cu(2+) in aqueous solution

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Yang HuSheng-Li Hu

Abstract

A new colorimetric probe 1 based on rhodamine B lactam was developed for naked-eye detection of Cu(2+). The optical feature of 1 for Cu(2+) was investigated by UV-vis absorption spectroscopy. Upon the addition of Cu(2+), the 1 displayed a distinct color change from colorless to pink, which can be directly detected by the naked eye. The stoichiometry of 1 to Cu(2+) complex was found to be 1:1 and the naked-eye detection limit was determined as low as 2 μM. The results suggest that the probe 1 may provide a convenient method for visual detection of Cu(2+) with high sensitivity.

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Citations

Mar 12, 2016·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·Mecit Ozdemir
Jul 23, 2016·Journal of Fluorescence·Parisa GholamzadehMaryam Jafari
Aug 3, 2017·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Natarajan VijaySivan Velmathi

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