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A novel ratiometric fluorescent probe for detection of Fe3+ by rhodamine–quinoline conjugate

Paper ID Volume ID Publish Year Pages File Format Full-Text
26593 43965 2015 6 PDF Available
Title
A novel ratiometric fluorescent probe for detection of Fe3+ by rhodamine–quinoline conjugate
Abstract

•The probe displayed selectivity toward Fe3+ even coexistent with other metal ions.•FRET, coupled with PET process are proposed to explain the observed spectral.•The detection limit of Fe3+ reached at 8.3 × 10−7 m.

In this study, we have developed a novel ratiometric fluorescence probe (HL) which contains rhodamine and quinoline moiety. In the absence of Fe3+, the sensor displays fluorescence emission at 425 nm, in the presence of Fe3+, the sensor shows a large fluorescence enhancement at 550 nm in methanol. More importantly, the reversibility of the recognition process of HL is performed by adding a Fe3+ bonding agent Na2EDTA.

Graphical abstractUpon addition of Fe3+, the fluorescence of rhodamine (at 550 nm) and quinoline (at 425 nm) enhanced simultaneously. Fluorescence resonance energy transfer process (FRET), coupled with photo induced electron transfer (PET) process are proposed to explain the observed spectral.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Fluorescence sensor; Rhodamine; Quinoline; Fe3+; Reversibility
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A novel ratiometric fluorescent probe for detection of Fe3+ by rhodamine–quinoline conjugate
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 310, 1 September 2015, Pages 122–127
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us