Determination of trivalent europium using flow injection chemiluminescence method

被引：20

作者：

Chen, SL

Zhao, HC ^{[1
]}

Wang, XL

Li, X

Jin, LP

机构：

[1] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China

[2] Capital Normal Univ, Dept Chem, Beijing 100037, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2004年 / 506卷 / 01期

基金：

中国国家自然科学基金;

关键词：

chemiluminescence; flow injection; europium; ethylenediaminetetraacetic acid disodium salt (EDTA);

D O I：

10.1016/j.aca.2003.11.040

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple flow injection chemiluminescence (CL) analysis method for the determination of europium, in mineral samples is reported. It is based on luminescence produced by NaIO4-H2O2 CL system sensitized by [Eu(EDTA)](-). The relative chemiluminescence intensity of the Eu3+-EDTA-NaIO4-H2O2 system is proportional to the amount of Eu3+. The optimized experimental conditions were investigated. The linear range and detection limit for Eu3+ are 2.0 x 10(-7) to 1.0 X 10(-5) and 6.2 x 10(-8) M, respectively. The sample throughput of the method is 80 samples/h. This method was successfully applied to the determination of europium in rare earth oxides. And the mechanism of chemiluminescence is proposed. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：25 / 29

页数：5

共 34 条

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