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A new quaternary luminescence enhancement system of Eu–N-(3-methoxysalicylidene)-2-aminopyridine–1,10-phenanthroline–Zn and its application in determining trace amounts of Eu3+ and Zn2+

Paper ID Volume ID Publish Year Pages File Format Full-Text
26656 43969 2013 7 PDF Available
Title
A new quaternary luminescence enhancement system of Eu–N-(3-methoxysalicylidene)-2-aminopyridine–1,10-phenanthroline–Zn and its application in determining trace amounts of Eu3+ and Zn2+
Abstract

A new sensitive quaternary luminescence enhancement system was developed successfully to determine the trace amounts of Eu3+ and Zn2+. The luminescence intensity of Eu–N-(3-methoxysalicylidene)-2-aminopyridine system was greatly increased by the addition of 1,10-phenanthroline and Zn2+. The excitation and emission wavelengths were 274 and 617 nm, respectively. Under optimal conditions, the luminescence intensity of the system showed a linear response toward Eu3+ in the range of 6.0 × 10−6–2.5 × 10−5 mol L−1 with a detection limit of 2.0 × 10−9 mol L−1. This method was successfully applied for the determination of trace amounts of Eu3+ in a high purity Gd2O3 matrix and a synthetic matrix. In addition, it was found that under optimal conditions, the luminescence intensity of the system decreased linearly with the increase of Zn2+ concentration, ranging from 2.0 × 10−6 to 1.8 × 10−5 mol L−1 with a detection limit of 2.8 × 10−8 mol L−1. This method was also successfully applied to determine the trace amounts of Zn2+ in a high purity Mg(NO3)2·6H2O matrix and a synthetic sample. The interferences of other lanthanide ions and some common coexisting ions were investigated. The mechanism for energy transfer and luminescence enhancement of this quaternary system was also studied systematically.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► A new quaternary luminescence enhancement system has been built. ► The system can be used for the determination of Eu3+ and Zn2+. ► The luminescence enhancement and energy transfer mechanisms are studied.

Keywords
Europium(III); Zinc(II); Luminescence enhancement; N-(3-methoxysalicylaldehyde)-2-aminopyridine; 1,10-Phenanthroline
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A new quaternary luminescence enhancement system of Eu–N-(3-methoxysalicylidene)-2-aminopyridine–1,10-phenanthroline–Zn and its application in determining trace amounts of Eu3+ and Zn2+
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 252, 15 January 2013, Pages 167–173
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