LEAD PRE-CONCENTRATION USING SOLID PHASE EXTRACTION

被引：0
|
作者：
Culetu, Alina [1 ]
Ion, Alina Catrinel [1 ]
Ion, Ion [1 ]
Luca, Constantin [1 ]
机构：
[1] Univ Politehn Bucuresti, Dept Analyt Chem & Instrumental Anal, Bucharest, Romania
来源：
UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE | 2010年 / 72卷 / 01期
关键词：
solid phase extraction; lead; ion-selective electrode; Chelex resin;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Lead is recognized worldwide as a poisonous metal, due to its negative effects. Thus, the determination of this element is often required in environmental and food samples. However, these analyses are difficult because such samples contain lead at trace level, which may be lower than the detection limit of conventional analytical techniques. Solid phase extraction is recommended for the pre-concentration of traces of lead from sample matrices. The aim of this study is to quantitatively pre-concentrate the lead on Chelex 100, optimizing various parameters such as pH, concentration and volume of the eluent, amount of resin and volume of sample solution. Lead was potentiometrically determined using ion-selective electrodes designed in our laboratory.
引用
收藏
页码：139 / 146
页数：8
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