Solid phase extraction flame atomic absorption spectrometric determination of ultra-trace beryllium

被引：40

作者：

Afkhami, A ^{[1
]}

Madrakian, T ^{[1
]}

Assl, AA ^{[1
]}

Sehhat, AA ^{[1
]}

机构：

[1] Bu Ali Sina Univ, Fac Sci, Dept Chem, Hamadan, Iran

来源：

ANALYTICA CHIMICA ACTA | 2001年 / 437卷 / 01期

关键词：

beryllium; preconcentration; ion exchange resin; flame atomic absorption spectrometry;

D O I：

10.1016/S0003-2670(01)00971-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple, highly sensitive, accurate and selective method for the determination of ultra-trace quantities of beryllium ion is proposed. The method is based on the preconcentration of Be2+ on an OH-form strong base anion exchange resin. The retained beryllium was eluted with 1.5 M HCl and measured by flame atomic absorption spectrometry (AAS) at 234.9 nm. Be2+ in the range 0.05-15 mug could be determined. The R.S.D. for 10 replicate measurements of 20 ng ml(-1) beryllium was 1.2% and the 3 sigma limit of detection of the method was 0.045 ng ml(-1). The proposed method was applied to the determination of beryllium in several water samples. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：17 / 22

页数：6

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