Synthesis of Fluorescent Ionic Liquid Probe 1-Butyl-2-phenyl Thiourea Pyridinium Bromide and Its Application in Determination of Mercury Ion(Ⅱ)

doi:10.3724/SP.J.1095.2011.00009

Chinese Journal of Applied Chemistry ›› 2011, Vol. 28 ›› Issue (12): 1436-1440.DOI: 10.3724/SP.J.1095.2011.00009

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Synthesis of Fluorescent Ionic Liquid Probe 1-Butyl-2-phenyl Thiourea Pyridinium Bromide and Its Application in Determination of Mercury Ion(Ⅱ)

HU Hongyu^1,2, ZHANG Lina^1,3, CHEN Jiangmin¹, ZENG Yanbo¹, LI Lei^1,2*

(1.College of Biological and Chemical Engineering,Jiaxing University,Jiaxing 314000;
2.College of Material and Chemical Engineering,Jiangxi University of Science and Technology,Ganzhou 341000;
3.College of Chemistry and Chemical Engineering,Changzhou University,Changzhou)

Received:2011-01-06 Revised:2011-04-12 Published:2011-12-10 Online:2011-12-10
Contact: li lei

Abstract

Abstract:

A novel type of fluorescent ionic liquid, 1-butyl-2-phenyl thiourea pyridinium bromide, was synthesized and a new method for determining Hg2+ in aqueous medium was developed. The results show that the method has an excellent selectivity, good linear relationship(r2=0.999 1), recovery 95.2%～102.2%, and low detection limit(0.011 mg/L) in the mass concentration range of 0.02~4 mg/L in BR buffer solution at pH=7. The method is successfully used for Hg2+ determination in natural water.

Key words: Fluorescence spectrometry, fluorescent ionic liquid, fluorescent probe, mercury ion(Ⅱ)

CLC Number:

O657.3

HU Hongyu1,2, ZHANG Lina1,3, CHEN Jiangmin1, ZENG Yanbo1, LI Lei1,2*. Synthesis of Fluorescent Ionic Liquid Probe 1-Butyl-2-phenyl Thiourea Pyridinium Bromide and Its Application in Determination of Mercury Ion(Ⅱ)[J]. Chinese Journal of Applied Chemistry, 2011, 28(12): 1436-1440.

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Synthesis of Fluorescent Ionic Liquid Probe 1-Butyl-2-phenyl Thiourea Pyridinium Bromide and Its Application in Determination of Mercury Ion(Ⅱ)

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