期刊
ANALYTICAL LETTERS
卷 35, 期 5, 页码 881-894出版社
MARCEL DEKKER INC
DOI: 10.1081/AL-120004076
关键词
amberlite XAD-2; 5-palmitoyl-8-hydroxyquinoline; atomic absorption spectrometry; iron; copper; cadmium; cobalt; nickel; chromium lead; preconcentration; water analysis; lake water
An Amberlite XAD-2 resin. functionalized with 5-palmitoyl-8-hydroxyquinoline, was prepared and used for the preconcentration of Fe(III), Cr(III), Cu(II), Cd(II), Co(II), Ni(II) and Pb(II) prior to their determination by flame atomic absorption spectrometry. Both batch and column sorption studies were carried out. The optimum pH range is between 4.5-6.0. for all the metal ions. All these metal ions can be desorbed with 2 mol 1(-1) HNO3 (recovery ratio 97-100%). The effect of various electrolytes on the sorption of these metal ions has been investigated. The enrichment factor has been found to be 50 for all seven metal ions for concentration level between 20-50 mug 1(-1). Simultaneous preconcentration and determination of all the metal ions is possible. The method has been succesfully applied to the determination of the heavy metals in Kucukcekmece Lake water samples (RSD 2.3-3.7%).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据