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

Authors
Addleman, RS Carrott, M Wai, CM Carleson, TE Wenclawiak, BW
Citation
Rs. Addleman et al., On-line speciation of uranyl chelates in supercritical CO2 by time-resolved laser-induced fluorescence spectroscopy, ANALYT CHEM, 73(6), 2001, pp. 1112-1119
Citations number
48
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL CHEMISTRY
ISSN journal
00032700 → ACNP
Volume
73
Issue
6
Year of publication
2001
Pages
1112 - 1119
Database
ISI
SICI code
0003-2700(20010315)73:6<1112:OSOUCI>2.0.ZU;2-L
Abstract
The dynamic emission characteristics of selected uranyl complexes in superc ritical (ScF) CO2 have been quantified with time-resolved laser-induced flu orescence (TRLIF). A variety of factors were found to affect the emission f rom uranyl complexes in ScF including ligand, adduct, pressure, and tempera ture. 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 a queous solutions with ScF CO2.