On-line speciation of uranyl chelates in supercritical CO2 by time-resolved laser-induced fluorescence spectroscopy

被引：17

作者：

Addleman, RS

Carrott, M

Wai, CM ^{[1
]}

Carleson, TE

Wenclawiak, BW

机构：

[1] Univ Idaho, Dept Chem, Moscow, ID 83844 USA

[2] Univ Idaho, Dept Chem Engn, Moscow, ID 83844 USA

[3] Univ Siegen, Dept Chem, D-57068 Siegen, Germany

来源：

ANALYTICAL CHEMISTRY | 2001年 / 73卷 / 06期

关键词：

D O I：

10.1021/ac001039p

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The dynamic emission characteristics of selected uranyl complexes in supercritical (ScF) CO2 have been quantified with time-resolved laser-induced fluorescence (TRLIF). A variety of factors were found to affect the emission from uranyl complexes in ScF including ligand, adduct, pressure, and temperature. TRLIF was shown to allow on-line speciation and quantitative analysis of uranyl complexes with different primary ligands in ScF CO2. The method was applied to real-time analysis of multiligand uranium extractions from aqueous solutions with ScF CO2.

引用

页码：1112 / 1119

页数：8

共 48 条

[1] A simple high pressure flow cell for on-line absorption, Raman, and time resolved laser induced fluorescence spectroscopy in supercritical fluids [J].