EXTRACTION AND SPECTROPHOTOMETRIC DETERMINATION OF ND(III), TH(IV) AND U(VI) IN SYNTHETIC BRINE USING CHLOROPHOSPHONAZO-III

被引：13

作者：

CHEN, JF ^{[1
]}

KHALILI, FI ^{[1
]}

MOHAMMED, AK ^{[1
]}

CHOPPIN, GR ^{[1
]}

机构：

[1] FLORIDA STATE UNIV,DEPT CHEM,TALLAHASSEE,FL 32306

来源：

ANALYTICA CHIMICA ACTA | 1994年 / 284卷 / 03期

关键词：

SPECTROPHOTOMETRY; BRINES; CHLOROPHOSPHONAZO III; EXTRACTION; NEODYMIUM; THORIUM; URANIUM;

D O I：

10.1016/0003-2670(94)85064-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple method has been developed to determine micromolar concentrations of Nd(III), Th(IV) and U(VI) in brine. The method involves the extractive separation of these cations from brine matrix species by using Chlorophosphonazo III as extractant with I-butanol as solvent, and the spectrophotometric determination of the concentration of extracted species in the butanol phase. The lowest concentrations that could be determined are estimated to be 5x10(-7) M for Nd(III) and 2x10(-7) M for Th(IV) and U(VI).

引用

页码：593 / 597

页数：5

共 14 条

[1]

BASSET J, 1978, VOGELS TXB QUANTITAT, P487

[2]

BUDESINSKY B, 1969, CHELATES ANALYTICAL, V2, P1

[3] THERMODYNAMICS OF COMPLEXATION OF LANTHANIDES BY BENZOIC AND ISOPHTHALIC ACIDS [J].