Published August 1976
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Spectrofluorimetric determination of microquantities of aluminium in uranium
Description
A rapid and sensitive method for the separation and spectrofluorimetric determination of microamounts of aluminium in uranium compounds is described. In sodium carbonate solution at pH 9.5-10.0, the uranyl ion forms a very stable anionic complex with the carbonate ion. In these conditions, uranium is not extracted by a chloroform oxine solution, while alumium is isolated as the tris(oxinate)aluminium(III) form. The interferences are previously extracted with chloroform as diethylditiocarbomates in the same tris(oxinate)aluminum(III) pH extraction. The sensitivity is 0,005 μ Al/ml of organic phase and the relative standard deviation is 10%
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Apresenta-se um metodo rapido e sensivel para a determinacao spectrofluorimetrica de microquantidades de aluminio em compostos de uranio. Em solucao de carbonato de sodio, a pH 9,5 - 10,0 o ion uranilo forma um complexo anionico muito estavel com o ion carbonato. Nestas condicoes, o uranio nao e extraido por solucao de oxina em cloroformio, o que possibilita a separacao do aluminio na forma de tris-oxinato de aluminio (III). Os elementos interferentes sao previamente extraidos com cloroformio, na forma de dietilditiocarbamatos, no mesmo pH de extracao do tris-oxinato de aluminio (III). A sensibilidade do metodo e de 0,005 μg Al/mL de fase organica, com um desvio padrao relativo de 10%Files
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Additional details
Additional titles
- Original title (Portuguese)
- Determinacao espectrofluorimetrica de microquantidades de aluminio em uranio
Publishing Information
- Imprint Pagination
- 5 p.
- Journal Issue
- no. 428
- Series
- Publicacao IEA.
- Report number
- IEA--428
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 8331899
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ALUMINIUM; FLUORESCENCE SPECTROSCOPY; MICROANALYSIS; QUANTITATIVE CHEMICAL ANALYSIS; SENSITIVITY; TRACE AMOUNTS; URANIUM COMPOUNDS
- Descriptors DEC
- ACTINIDE COMPOUNDS; CHEMICAL ANALYSIS; ELEMENTS; EMISSION SPECTROSCOPY; METALS; SPECTROSCOPY