Preparation and characterization of chelating resins loaded with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol for preconcentration of rare earth elements

被引：22

作者：

Masi, AN ^{[1
]}

Olsina, RA ^{[1
]}

机构：

[1] NATL UNIV SAN LUIS,DEPT ANALYT CHEM DR CARLOS B MARONE,FAC CHEM BIOCHEM & PHARM,SAN LUIS,ARGENTINA

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1997年 / 357卷 / 01期

关键词：

D O I：

10.1007/s002160050112

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Chelating resins prepared by sorption of 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol (5-BrPADAP) on macroporous resins (Amberlite XAD-4 and XAD-7) were characterized. The adsorption properties (amount of chelating agent adsorbed per gram of resin, sorption kinetics, retention capacity, etc.) and the thermodynamic quantities of each adsorption process were determined. The retention of some rare earth elements (e.g. Er, Yb and Lu) on these chelating resins was studied in order to preconcentrate them for their determination by X-Ray fluorescence spectrometry.

引用

页码：65 / 68

页数：4

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