On-line preconcentration and determination of trace metals using a flow injection system coupled to ion chromatography

被引：29

作者：

Bin Abas, MR ^{[1
]}

Takruni, IA

Abdullah, Z

Tahir, NM

机构：

[1] Univ Malaya, Dept Chem, Kuala Lumpur 50603, Malaysia

[2] Univ Malaysia Terengganu, Fac Sci & Technol, Kuala Terenganu 21030, Malaysia

来源：

TALANTA | 2002年 / 58卷 / 05期

关键词：

flow injection analysis; ion chromatography; 8-hydroxyquinoline;

D O I：

10.1016/S0039-9140(02)00396-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A flow injection (FI) method with on-line preconcentration using a mini-column loaded with 8-hydroxyquinoline immobilized on controlled pore glass (CPG-8HQ) is described for the determination of trace metals by ion chromatography (IC) with pyridine-2-6-dicarboxylic acid (PDCA) as the eluent. Copper, cadmium, lead, zinc, nickel and iron were determined at ppb level after post-column derivatization with 4-(2-pyridylazo)-resorcinol (PAR). The detection limits (3sigma) for the FI/IC system were 8.27, 0.89, 0.09, 0.06, 0.09 and 0.07 g l(-1) for Pb2+, Cd2+, Cu2+ Ni2+, Zn2+ and Fe3+, respectively, using 5 ml sample volume. The method was applied to the analysis of Malaysian natural waters. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：883 / 890

页数：8

共 17 条

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Bowen H. J. M., 1979, Environmental chemistry of the elements.

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