期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 145, 期 1-2, 页码 113-119出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2006.11.001
关键词
chelating resin; solid phase extraction; trace metal; flame atomic absorption spectrometry
In the presented work, a-benzoin oxime immobilized SP70 chelating resin was synthesized for separation and preconcentration of Pb(II), Cd(II), Co(II) and Cr(III). The optimization procedure for analytical parameters including pH, eluent type, flow rate, etc. was examined in order to gain quantitative recoveries of analyte ions. The effects of foreign ions on the recoveries of studied metal ions were also investigated. The detection limits Q(T) were found to be 16.0, 4.2, 1.3, 2.4 mu g L-1 for Pb, Cd, Co and Cr, respectively. The preconcentration factor was 75 for Ph, 100 for Cd, Co and Cr. The optimized method was validated with certified reference materials and successfully applied to the waters, crops and pharmaceutical samples with good results (recoveries greater than 95%, R.S.D. lower than 10%). (c) 2006 Elsevier B.V. All rights reserved.
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