Determination of aliphatic amines using fluorescence intensity of 4-methyl umbelliferone

被引：14

作者：

Hadjmohamadi, M. R. ^{[1
]}

Chaichi, M. J. ^{[1
]}

Biparva, P. ^{[1
]}

Alizadeh, K. ^{[2
]}

机构：

[1] Univ Mazandaran, Dept Chem, Babol Sar, Iran

[2] Univ Lorestan, Dept Chem, Khorramabad, Iran

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2008年 / 70卷 / 02期

关键词：

aliphatic amines; 4-methyl umbelliferone; fluorescence quenching; fluorescence enhancing; Stern-Volmer plot;

D O I：

10.1016/j.saa.2007.10.029

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Effect of aliphatic amines and their concentration on fluorescence intensity of 4-methyl umbelliferone (4-MU) one of coumarin derivative were investigated. This compound has blue light emission under UV lamp in methanolic solution. Spectral investigation of 4-MU solution containing amine compounds showed lower intensity at 350-410 nm (quenching region) and higher intensity at 430-500 nm (enhancing region) as compared to pure methanolic solution of 4-MU. Fluorescence intensity at isoemitting point was independent from concentration of amines. The variation of fluorescence intensity could be used for determination of aliphatic amines in both quenching and enhancing region. Linear ranges for determination of amines in the quenching region were obtained from Stern-Volmer diagram of 4-MU. Determination of amines at fluorescence enhancing region using inverse fluorescence intensity against inverse amine concentration (bireciprocal plot) were investigated and related equations was also proposed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：358 / 361

页数：4

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