Immobilized 1,5-diphenylcarbazone as a complexing agent for on-line trace enrichment and determination of copper by flow injection-atomic absorption spectroscopy

被引：31

作者：

Dadfarnia, S ^{[1
]}

Salmanzadeh, AM ^{[1
]}

Shabani, AMH ^{[1
]}

机构：

[1] Yazd Univ, Dept Chem, Yazd, Iran

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 2002年 / 17卷 / 10期

关键词：

D O I：

10.1039/b204966j

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A rapid on- line preconcentration technique for the determination of copper in different samples by FI- AAS has been devised. Preconcentration is based on the deposition of analyte on a micro- column of 1,5- diphenylcarbazone immobilized on surfactant coated alumina and subsequent elution by injection of a small volume of hydrobromic acid (500 mul of 0.75 mol l(-1) acid). A sample volume of 30 ml resulted in a preconcentration factor of 100, and precisions at the 100 and 10 mug l(-1) levels were 3.2 and 3.5% RSD, respectively. The procedure was applied to spring water, well water, sea- water, stainless steel and a multivitamin tablet and the accuracy was assessed through recovery experiments, independent analysis by furnace- AAS, and the analysis of a certified reference material.

引用

页码：1434 / 1438

页数：5

共 25 条

[1] 1,10-phenanthroline as a complexing agent for on-line sorbent extraction preconcentration for flow injection-flame atomic absorption spectrometry [J].