Determination of the uranium concentration in water samples by the technique of fission track recording
Description
The technique of fission track register was developed for the determination of micrograms of uranium. The Makrofol KG, a synthetic plastic made by Bayer, was used as the detector and the wet method was utilized. The detector calibration curve allows the determination of the uranium concentration in a sample within an interval from 8.0 to 0.4μgU/L, the total error ranging from 3.3% to 29.0% respectively. The method was used in the determination of the uranium content in various water samples, obtained from various sources like rivers, sea etc. in the state of Sao Paulo, Brazil. Results were compared with those obtained by other authors using different methods. The average concentration found in sea waters (3.27 +- 9.12μgU/l) by this method is compatible with the international average accepted value of 3.3μgU/l, irrespective of site and depth. The determination of the uranium content by fission track counting has proved to be very convenient. (Author)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Desenvolveu-se a tecnica de registro de tracos de fissao, para determinar quantidade de uranio da ordem de μg/l. Empregou-se o metodo em solucao (Wet Method) e como detector o Makrofol KG, que e um plastico sintetico confeccionado pela Bayer. Pela curva de calibracao do detector, consegue-se determinar a concentracao em uranio, no intervalo de 8,0 a 0,4μgU/l, de uma amostra desconhecida, com um erro total variando de 3,3% a 29,0% respectivamente. O metodo foi aplicado na determinacao de uranio em diversas amostras d'aguas, recolhidas de diversas fontes como rios, mar etc., em sua maioria, no estado de Sao Paulo. Os resultados sao apresentados juntamente com os obtidos por diferentes autores e metodos, em analises de aguas de mesma especie. A concentracao media de uranio encontrada em aguas do mar (3,27 +- 0,12μgU/l) por este metodo e compativel com a media internacionalmente aceita de 3,3μgU/l, independente do local e profundidade. De uma forma geral, o metodo mostrou-se bastante conveniente aos propositos visados. (Autor)Files
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Additional details
Additional titles
- Original title (Portuguese)
- Determinacao da concentracao de uranio em aguas pela tecnica do registro de tracos de fissao
Publishing Information
- Imprint Pagination
- 33 p.
- Journal Issue
- no. 159
- Series
- IEA Dissertacao e Tese.
- Report number
- IEA-DT--159
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 11564338
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- COMPARATIVE EVALUATIONS; DIELECTRIC TRACK DETECTORS; FISSION TRACKS; QUANTITY RATIO; URANIUM; WATER
- Descriptors DEC
- ACTINIDES; ELEMENTS; HYDROGEN COMPOUNDS; MEASURING INSTRUMENTS; METALS; OXYGEN COMPOUNDS; PARTICLE TRACKS; RADIATION DETECTORS