Published March 1988 | Version v1
Journal article Metadata-only

Neutron activation analysis of uranium via 239Np

Creators

  • 1. Rabat Univ. (Morocco). Lab. de Radiochimie
  • 2. Strasbourg-1 Univ., 67 (France). Centre de Recherches Nucleaires

Description

A method is described for the analysis of uranium by neutron activation. The sample is brought into solution and the neptunium present is reduced to oxidation state (IV); quantitative extraction of 239Np in the acidified aqueous phase (0.4<pH<1) is performed with a solution of HTTA (0.2M) in benzene. The use of a low-power reactor (100 kWthermal) enables determination of uranium at a lower concentration limit of 33 ng for periods of irradiation, cooling and measurement of 3 hours, 24 hours and 900 seconds, respectively. (author) 14 refs.; 6 figs

Additional details

Publishing Information

Journal Title
J. Radioanal. Nucl. Chem.
Journal Volume
121
Journal Issue
1
Series
J. Radioanal. Nucl. Chem. ;Articles.
Journal Page Range
99-107
ISSN
0236-5731
CODEN
JRNCD

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
19103575
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ABSORPTION SPECTROSCOPY; AQUEOUS SOLUTIONS; BENZENE; DISTRIBUTION; NEPTUNIUM COMPLEXES; NEPTUNIUM 239; NEUTRON ACTIVATION ANALYSIS; PH VALUE; RADIOMETRIC ANALYSIS; SOLVENT EXTRACTION; TTA; URANIUM
Descriptors DEC
ACTINIDE COMPLEXES; ACTINIDE NUCLEI; ACTINIDES; ACTIVATION ANALYSIS; AROMATICS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; COMPLEXES; DAYS LIVING RADIOISOTOPES; DISPERSIONS; ELEMENTS; HEAVY NUCLEI; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROCARBONS; ISOTOPES; KETONES; METALS; MIXTURES; NEPTUNIUM ISOTOPES; NONDESTRUCTIVE ANALYSIS; NUCLEI; ODD-EVEN NUCLEI; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC SULFUR COMPOUNDS; QUANTITATIVE CHEMICAL ANALYSIS; RADIOISOTOPES; SEPARATION PROCESSES; SOLUTIONS; SPECTROSCOPY; TRANSURANIUM COMPLEXES