AMERICIUM TRACE DETERMINATION IN AQUEOUS AND SOLID MATRICES BY TIME-RESOLVED LASER-INDUCED FLUORESCENCE

Authors
THOUVENOT P HUBERT S MOULIN C DECAMBOX P MAUCHIEN P
Citation
P. Thouvenot et al., AMERICIUM TRACE DETERMINATION IN AQUEOUS AND SOLID MATRICES BY TIME-RESOLVED LASER-INDUCED FLUORESCENCE, Radiochimica Acta, 61(1), 1993, pp. 15-21
Citations number
33
Categorie Soggetti
Nuclear Sciences & Tecnology","Chemistry Inorganic & Nuclear
Journal title
Radiochimica Acta → ACNP
ISSN journal
00338230
Volume
61
Issue
1
Year of publication
1993
Pages
15 - 21
Database
ISI
SICI code
0033-8230(1993)61:1<15:ATDIAA>2.0.ZU;2-R
Abstract
Time-Resolved Laser-Induced Fluorescence (TRLIF) is applied to the det ermination of americium traces in solution and solid matrix (ThO2). Fl uorescence lifetimes and nonradiative decay rates are measured in vari ous media (inorganic, organic and solids). A difference of four orders of magnitude is observed between the lifetime in organic media and in solid matrices. The results are compared also with those obtained for europium. The investigations show that the laser-induced fluorescence technique provides much higher sensitivity for Am3+ traces in solid m atrix (10(-10) M) than in aqueous complexing agents (10(-8) M).