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
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
收藏
页码:1112 / 1119
页数:8
相关论文
共 48 条
[11]   UV-visible spectroscopic measurement of solubilities in supercritical CO2 using high-pressure fiber-optic cells [J].
Carrott, MJ ;
Wai, CM .
ANALYTICAL CHEMISTRY, 1998, 70 (11) :2421-2425
[12]  
COLLMAN JP, 1980, PRINCIPLES APPLICATI, pCH3
[13]   THE CHEMISTRY OF URANYL ACETYLACETONE COMPLEX [J].
COMYNS, AE ;
GATEHOUSE, BM ;
WAIT, E .
JOURNAL OF THE CHEMICAL SOCIETY, 1958, (DEC) :4655-&
[14]  
DENNING RG, 1992, STRUCT BOND, V79, P215
[15]   CHARACTERIZATION OF HYDROXIDE COMPLEXES OF URANIUM(VI) BY TIME-RESOLVED FLUORESCENCE SPECTROSCOPY [J].
ELIET, V ;
BIDOGLIO, G ;
OMENETTO, N ;
PARMA, L ;
GRENTHE, I .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1995, 91 (15) :2275-2285
[16]   THE IMPORTANCE OF ELEMENT SPECIATION IN WATER ANALYSIS - A PLEA FOR FURTHER INVESTIGATIONS [J].
FRIMMEL, FH ;
GREMM, T .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1994, 350 (1-2) :7-13
[17]  
FUJIMORI H, 1988, J NUCL SCI TECHNOL, V25, P798, DOI [10.1080/18811248.1988.9735927, 10.3327/jnst.25.798]
[18]   FLUOROMETRY OF UO-2(2+) ION IN NITRIC-ACID SOLUTIONS [J].
FUJIMORI, H ;
MATSUI, T ;
SUZUKI, K ;
HAYASHI, S ;
WADA, Y .
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 1986, 23 (12) :1069-1074
[19]  
Geipel G, 1996, RADIOCHIM ACTA, V75, P199
[20]   IDENTIFICATION OF LOWER TRANSITIONS IN SPECTRA OF URANYL COMPLEXES [J].
GORLLERW.C ;
VANQUICKENBORNE, LG .
JOURNAL OF CHEMICAL PHYSICS, 1971, 54 (10) :4178-+