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Rio, M.A.P. do; Godoy, J.M. de.
Instituto de Radioprotecao e Dosimetria, Rio de Janeiro (Brazil)1985
Instituto de Radioprotecao e Dosimetria, Rio de Janeiro (Brazil)1985
AbstractAbstract
[en] A spectrophotometric determination of thorium with arsenazo III (1,8 dihidroxynaphtaline - 3,6 sulfanic acid - 2,7 bis (azo-2) - phenil argonic acid) was carried out aiming to analyse this element in water. In order to eliminate possible interferences, a coprecipitation with lantanium fluoride was used followed by an extration with 0,2 M TTA (tenoil-trifluor - aceton) / Benzen. The results showed a good agreement with the ones obtained by alfa-spectrometry. (Author)
[pt]
Foi feita a determinacao espectrofotometrica do torio com arsenazo III (1,8 dihidroxinaftaleno - 3,6 acido sulfanico - 2,7 bis (azo-2) acido fenil arzonico), visando a analise deste elemento em aguas. De modo a isolar o torio de possiveis interferentes espectrofotometricos, foi empregada uma coprecipitacao com fluoreto de lantanio seguida da extracao com 0,2 M TTA (tenoil-trifluor-acetona) / benzeno. Os resultados obtidos mostraram uma boa concordancia com os obtidos por espectrometria alfa. (Autor)Original Title
Determinacao espectrofotometrica de torio com arsenazo III em aguas; Argonic acid
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1985; 19 p
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Report
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ACTINIDES, AROMATICS, ARSENIC COMPOUNDS, ARSONIC ACIDS, AZO COMPOUNDS, ELEMENTS, HYDROGEN COMPOUNDS, HYDROXY COMPOUNDS, METALS, ORGANIC ACIDS, ORGANIC COMPOUNDS, ORGANIC NITROGEN COMPOUNDS, ORGANIC SULFUR COMPOUNDS, OXYGEN COMPOUNDS, PHENOLS, POLAR SOLVENTS, POLYPHENOLS, REAGENTS, SOLVENTS, SULFONIC ACIDS, WASTES
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