共 50 条
Studies on the liquid-liquid extraction of nickel(II), zinc(II), cadmium(II), mercury(II) and lead(II) with 1-phenyl-3hydroxy-4-dodecyldithiocarboxylate-5-pyrazolone
被引:56
|作者:
Oliva, A
[1
]
Molinari, A
[1
]
Zúñiga, F
[1
]
Ponce, P
[1
]
机构:
[1] Pontificia Univ Catolica Valparaiso, Inst Chem, Valparaiso, Chile
关键词:
solvent extraction;
transition ions;
pyrazolone-1;
dithiocarboxylate;
D O I:
10.1007/s00604-002-0905-9
中图分类号:
O65 [分析化学];
学科分类号:
070302 ;
081704 ;
摘要:
The extraction behaviour of Ni(II), Zn(II), Cd(II), Hg(II) and Pb(II) from aqueous solution, as function of pH, has been investigated with chloroform solutions of 1-phenyl-3-hydroxy-4-dodecyldithiocarboxylate-5-pyrazolone (HDTC-12) as extractant. In each case, the extracted species was found to be M(DTC-12)(2) and the extraction constants were deduced by non-linear regression analysis. The results demonstrate that this ligand extracts selectively Hg(II) from Cd(II) as well as from Pb(II).
引用
收藏
页码:201 / 203
页数:3
相关论文