FLUORESCENCE AND LIQUID ROOM-TEMPERATURE PHOSPHORESCENCE OF THE ALUMINUM FERRON CHELATE IN VESICLES

被引：11

作者：

DELACAMPA, MRF ^{[1
]}

LIU, YM ^{[1
]}

GARCIA, MED ^{[1
]}

SANZMEDEL, A ^{[1
]}

机构：

[1] UNIV OVIEDO,FAC CHEM,DEPT PHYS & ANALYT CHEM,OVIEDO,SPAIN

来源：

ANALYTICA CHIMICA ACTA | 1990年 / 238卷 / 02期

关键词：

Aluminium; Milk powder;

D O I：

10.1016/S0003-2670(00)80551-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In order to evaluate the analytical potential of vesicles for enhancing the room-temperature luminescence of metal chelates, the photoluminescence emission of the aluminium-ferron complex in vesicular solutions was examined. The presence of vesicles of didodecyldimethylammonium bromide produced a six-fold enhancement in the fluorescence intensity of the metal chelate. Vesicles also proved to be efficient stabilizers to obtain analytically useful liquid room-temperature phosphorescence for aluminium. Optimum experimental conditions and luminescence characteristics of the aluminium complex in the presence of vesicles are described and compared with those obtained for the same chelate in micellar media. As a result, a vesicle-enhanced fluorimetric procedure is proposed which has been successfully applied to the determination of low levels of aluminium in milk powders. © 1990.

引用

页码：297 / 305

页数：9

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