Flow injection determination of Pb and Cd traces with graphite furnace atomic absorption spectrometry

被引：28

作者：

Colognesi, M ^{[1
]}

Abollino, O ^{[1
]}

Aceto, M ^{[1
]}

Sarzanini, C ^{[1
]}

Mentasti, E ^{[1
]}

机构：

[1] UNIV TURIN,DEPT ANALYT CHEM,I-10125 TURIN,ITALY

来源：

TALANTA | 1997年 / 44卷 / 05期

关键词：

cadmium; flow injection atomic spectrometry; lead; natural waters; preconcentration; tiron;

D O I：

10.1016/S0039-9140(96)02131-5

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The preconcentration and recovery of lead and cadmium traces at ng l(-1) level were evaluated in standard solutions and natural aqueous samples using a FIAS (Flow Injection Atomic Spectrometry) apparatus. The method is based on retention of the complex formed between Pb or Cd and 1,2-dihydroxy-3,5-benzendisulphonic acid (Tiron) on a macroporous anion-exchange resin. The recovery of the analytes was obtained by elution with 0.1 M HCl and their determination was performed by Graphite Furnace Atomic Absorption Spectrometry (GFAAS). The detection limits were 9 and 7 ng l(-1) for Pb and Cd respectively. The effects of sample solution pH and composition and of interfering agents as well as reagent purity are discussed. The technique was applied to the analysis of natural waters. (C) 1997 Elsevier Science B.V.

引用

页码：867 / 875

页数：9

共 13 条

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