Interaction of pyridine-2,5-dicarboxylic acid with heavy metal ions in aqueous solutions

被引：12
|
作者：
Norkus, E
Gaidamauskas, E
Stalnioniene, I
Crans, DC
机构：
[1] Inst Chem, Catalysis Lab, LT-01108 Vilnius, Lithuania
[2] Vilnius Univ, Fac Chem, LT-03225 Vilnius, Lithuania
[3] Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA
来源：
HETEROATOM CHEMISTRY | 2005年 / 16卷 / 04期
关键词：
D O I：
10.1002/hc.20123
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Interactions between pyridine-2,5-dicarboxylic acid and Zn(II), Ni(II), Pb(II), Cd(H), and Cu(II) were characterized in aqueous solutions (20 degrees C; I = 0.4 (KNO3)) by means of d.c.-polarography, spectrophotometry, and H-1 NMR spectroscopy. Polarography was used to determine the concentration of free metal ions in the presence of 10-fold excess ligand in weakly alkaline solutions, and to determine stability constants for the Zn(II), Cd(II), and Cu(II) complexes with pyridine-2,5-dicarboxylic acid. H-1 NMR spectroscopy was used to further characterize complex formation. (c) 2005 Wiley Periodicals, Inc.
引用
收藏
页码：285 / 291
页数：7
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