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Fluorescence of UO{sub 2}{sup 2+} in different acidic media containing cationic and anionic impurities. Application to the elaboration of a very sensitive dosing method of Uranium in solution by fluorimetry and to the study of the kinetics of U-6 reduction by Iron; Fluorescence de UO{sub 2}{sup 2+} dans les differents milieux acides en presence d`impuretes cationiques et anioniques. Application a la mise au point d`une methode tres sensible de dosage de l`Uranium en solution par fluorimetrie et a l`etude de la cinetique de reduction de U-6 par le Fer

Abstract

The use of the fluorimetric analysis method in phosphoric medium proved that this method is very sensitive for detecting Uranium traces (10 E-10 M). The dosing can be carried out after a simple calibration of the device and without calling for the addition techniques. The interference of most organic matters is eliminated by the 337 nm exciting radiation. The inhibition of the fluorescence induced by anions and cations is generally resolved by a simple dilution. The nitrates that have a harmful effect on the Uranium fluorescence have been eliminated by successive evaporations. This method, as it has been improved in this work, is applied to the study of U-6 reduction by metallic Iron and Fe-2 in orthophosphoric acid medium in case the absorption spectrophotometry becomes inoperative. 37 figs., 14 tabs., 50 refs. (author).
Authors:
Belkadi, L [1] 
  1. Universite Mohammed 5, Rabat (Morocco). Faculte des Sciences
Publication Date:
Sep 01, 1990
Product Type:
Thesis/Dissertation
Report Number:
INIS-mf-13065
Reference Number:
SCA: 400102; 050400; PA: AIX-23:014080; SN: 92000646582
Resource Relation:
Other Information: TH: Thesis (D.E.S.).; PBD: Sep 1990
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; URANIUM; FLUORESCENCE SPECTROSCOPY; TRACE AMOUNTS; URANIUM IONS; IRON; REDUCTION; URANYL COMPOUNDS; EXPERIMENTAL DATA; FLUORESCENCE; HYDROFLUORIC ACID; IMPURITIES; PHOSPHORIC ACID; REACTION KINETICS; SULFURIC ACID; 400102; 050400; CHEMICAL AND SPECTRAL PROCEDURES; FEED PROCESSING
OSTI ID:
10113050
Research Organizations:
Universite Mohammed 5, Rabat (Morocco). Faculte des Sciences
Country of Origin:
Morocco
Language:
French
Other Identifying Numbers:
Other: ON: DE92614750; TRN: MA9100018014080
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
138 p.
Announcement Date:
Jun 30, 2005

Citation Formats

Belkadi, L. Fluorescence of UO{sub 2}{sup 2+} in different acidic media containing cationic and anionic impurities. Application to the elaboration of a very sensitive dosing method of Uranium in solution by fluorimetry and to the study of the kinetics of U-6 reduction by Iron; Fluorescence de UO{sub 2}{sup 2+} dans les differents milieux acides en presence d`impuretes cationiques et anioniques. Application a la mise au point d`une methode tres sensible de dosage de l`Uranium en solution par fluorimetrie et a l`etude de la cinetique de reduction de U-6 par le Fer. Morocco: N. p., 1990. Web.
Belkadi, L. Fluorescence of UO{sub 2}{sup 2+} in different acidic media containing cationic and anionic impurities. Application to the elaboration of a very sensitive dosing method of Uranium in solution by fluorimetry and to the study of the kinetics of U-6 reduction by Iron; Fluorescence de UO{sub 2}{sup 2+} dans les differents milieux acides en presence d`impuretes cationiques et anioniques. Application a la mise au point d`une methode tres sensible de dosage de l`Uranium en solution par fluorimetrie et a l`etude de la cinetique de reduction de U-6 par le Fer. Morocco.
Belkadi, L. 1990. "Fluorescence of UO{sub 2}{sup 2+} in different acidic media containing cationic and anionic impurities. Application to the elaboration of a very sensitive dosing method of Uranium in solution by fluorimetry and to the study of the kinetics of U-6 reduction by Iron; Fluorescence de UO{sub 2}{sup 2+} dans les differents milieux acides en presence d`impuretes cationiques et anioniques. Application a la mise au point d`une methode tres sensible de dosage de l`Uranium en solution par fluorimetrie et a l`etude de la cinetique de reduction de U-6 par le Fer." Morocco.
@misc{etde_10113050,
title = {Fluorescence of UO{sub 2}{sup 2+} in different acidic media containing cationic and anionic impurities. Application to the elaboration of a very sensitive dosing method of Uranium in solution by fluorimetry and to the study of the kinetics of U-6 reduction by Iron; Fluorescence de UO{sub 2}{sup 2+} dans les differents milieux acides en presence d`impuretes cationiques et anioniques. Application a la mise au point d`une methode tres sensible de dosage de l`Uranium en solution par fluorimetrie et a l`etude de la cinetique de reduction de U-6 par le Fer}
author = {Belkadi, L}
abstractNote = {The use of the fluorimetric analysis method in phosphoric medium proved that this method is very sensitive for detecting Uranium traces (10 E-10 M). The dosing can be carried out after a simple calibration of the device and without calling for the addition techniques. The interference of most organic matters is eliminated by the 337 nm exciting radiation. The inhibition of the fluorescence induced by anions and cations is generally resolved by a simple dilution. The nitrates that have a harmful effect on the Uranium fluorescence have been eliminated by successive evaporations. This method, as it has been improved in this work, is applied to the study of U-6 reduction by metallic Iron and Fe-2 in orthophosphoric acid medium in case the absorption spectrophotometry becomes inoperative. 37 figs., 14 tabs., 50 refs. (author).}
place = {Morocco}
year = {1990}
month = {Sep}
}