Solvent extraction behaviors of Americium(III) and Europium(III) using 2-hydroxy-2-methyloctanoic acid and 2-hydroxy-2-trifluoromethyloctanoic acid

被引：4

作者：

Seike, Moe ^{[1
]}

Eguchi, Mai ^{[1
]}

Shinohara, Atsushi ^{[1
]}

Yoshimura, Takashi ^{[2
]}

机构：

[1] Osaka Univ, Dept Chem, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

[2] Osaka Univ, Radioisotope Res Ctr, Suita, Osaka 5650871, Japan

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2015年 / 303卷 / 02期

关键词：

Actinides; Lanthanides; Americium; Europium; Solvent extraction; CAPILLARY-ELECTROPHORESIS; CHROMATOGRAPHY; LANTHANIDES; SEPARATIONS; SPECIATION; ACTINIDES; COMPLEXES; THORIUM;

D O I：

10.1007/s10967-014-3482-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Solvent extraction behaviors of Am(III) and Eu(III) using 2-hydroxy-2-methyloctanoic acid (Hhmo) and 2-hydroxy-2-trifluoromethyloctanoic acid (Hhfo) were investigated in aqueous acetic acid/1-octanol at 20 A degrees C. In both cases, distribution ratios (D) of the organic/aqueous phases increased with increasing pH of the aqueous solution. The D (Am(Hhfo)) and D (Eu(Hhfo)) values were found to be much higher than those for D (Am(Hhmo)) and D (Eu(Hhmo)), respectively, under similar pH conditions. The maximum separation factor of D (Eu(Hhfo))/D (Am(Hhfo)) was 2.31 +/- A (0.70) (0.80) at pH 4.29. The differences between D (Am(Hhmo)) and D (Eu(Hhmo)) values were relatively small in the pH region under consideration.

引用

页码：1413 / 1416

页数：4

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