A micro mixed micelle-mediated preconcentration procedure for spectrophotometric determination of uranium in real and synthetic samples

被引：15

作者：

Mortada, W. I. ^{[1
]}

Kenawy, I. M. M. ^{[2
]}

El-Gamal, G. G. ^{[2
]}

Moalla, S. M. N. ^{[3
]}

机构：

[1] Mansoura Univ, Urol & Nephrol Ctr, Mansoura, Egypt

[2] Mansoura Univ, Dept Chem, Fac Sci, Mansoura, Egypt

[3] Port Said Univ, Dept Chem, Fac Sci, Port Said, Egypt

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 313卷 / 01期

关键词：

Micro cloud point extraction; Preconcentration; Uranium; SPADNS; Spectrophotometry; CLOUD POINT EXTRACTION; PLASMA-MASS SPECTROMETRY; TRACE AMOUNTS; SELECTIVE SEPARATION; BIOLOGICAL SAMPLES; WATER; SPADNS; URINE; SURFACTANTS; SEAWATER;

D O I：

10.1007/s10967-017-5281-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A micro-cloud point extraction method was discussed for preconcentration and spectrophotometric quantification of U(VI). The method depends on complex formation between U(VI) and 2-(4-sulphophenyloazo)-1,8-dihydroxy-3,6-naphtalenedisulphonic acid (SPADNS) at pH 7.0 and subsequent extraction of the complex in a mixed surfactant medium (cethyltrimethyl ammonium bromide and Triton X-114). The separation was carried out in the presence of 1% Na2SO4 at room temperature. The calibration curve was linear up to 3000 A mu g L-1. The enrichment factor, detection limit and precision were 16.0, 1.05 A mu g L-1, and 2.3%, respectively. The method was employed for the determination of U(VI) in real samples with different matrices.

引用

页码：69 / 77

页数：9

共 42 条

[1] Micelle-mediated preconcentration using cationic surfactants for the spectrophotometric determination of uranium in aqueous solutions [J].