Extraction distributions of microamounts of strontium and barium in the two-phase water-HCl-nitrobenzene-dibenzo-21-crown-7-hydrogen dicarbollylcobaltate system

被引：31

作者：

Makrlik, E. ^{[1
]}

Vanura, P. ^{[2
]}

Selucky, P. ^{[3
]}

机构：

[1] Univ W Bohemia, Fac Sci Appl, Plzen 30614, Czech Republic

[2] Prague Inst Chem Technol, CR-16628 Prague, Czech Republic

[3] Nucl Res Inst, CZ-25068 Rez, Czech Republic

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2008年 / 275卷 / 01期

关键词：

D O I：

10.1007/s10967-006-6975-0

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Extraction of microamounts of strontium and barium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B) in the presence of dibenzo-21-crown-7 (DB21C7, L) has been investigated. The equilibrium data have been explained assuming that the complexes HL+, ML2+, ML22+ and MHL23+ (M2+ = Sr2+, Ba2+) are extracted into the organic phase. The values of extraction and stability constants of the species in nitrobenzene saturated with water have been determined.

引用

页码：3 / 7

页数：5

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