Published July 1988 | Version v1
Journal article Metadata-only

Radiochemical measurements of 99Tc

Creators

  • 1. International Atomic Energy Agency, Monaco-Ville (Monaco). Lab. of Marine Radioactivity
  • 2. Lund Univ. (Sweden). Dept. of Radiation Physics

Description

A method of 99Tc determination was developed based on sample decomposition followed by purification from interfering elements by hydroxide and oxide precipitations. Technetium is extracted by TBP and electrodeposited onto stainless steel discs from sodium hydroxide solution. 99Tcm is used as yield monitor. The method was applied to study releases from different sources and contents in different samples of atmospheric, terrestrial and marine origin. Results show enhanced 99Tc/137Cs activity ratios for samples collected in recent years which are only expected to be contaminated from fallout from nuclear tests. Integrated fallout measurements did not reflect these enhanced ratios. (author) 16 refs.; 3 figs.; 3 tabs

Additional details

Additional titles

Subtitle (English)
Sources and environmental levels

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
123
Journal Issue
1
Series
J. Radioanal. Nucl. Chem. ;Articles.
Journal Page Range
167-179
ISSN
0236-5731
CODEN
JRNCD

Conference

Title
International topical conference on methods and applications of radioanalytical chemistry.
Dates
5-10 Apr 1987.
Place
Kona, HI (USA).

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
20028563
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ELECTRODEPOSITION; ENVIRONMENTAL TRANSPORT; EXPERIMENTAL DATA; INTERFERING ELEMENTS; PRECIPITATION; RADIATION SOURCES; RADIOMETRIC ANALYSIS; RAIN WATER; SOLVENT EXTRACTION; TECHNETIUM COMPLEXES; TECHNETIUM 99
Descriptors DEC
BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CHEMICAL ANALYSIS; COMPLEXES; DATA; DEPOSITION; ELECTROLYSIS; HOURS LIVING RADIOISOTOPES; HYDROGEN COMPOUNDS; INFORMATION; INTERMEDIATE MASS NUCLEI; INTERNAL CONVERSION RADIOISOTO; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; MASS TRANSFER; NUCLEI; NUMERICAL DATA; ODD-EVEN NUCLEI; OXYGEN COMPOUNDS; POLAR SOLVENTS; QUANTITATIVE CHEMICAL ANALYSIS; RADIOISOTOPES; SEPARATION PROCESSES; SOLVENTS; SURFACE COATING; TECHNETIUM ISOTOPES; TRANSITION ELEMENT COMPLEXES; WATER; YEARS LIVING RADIOISOTOPES