Luminescence determination of trace neptunium in natural waters with the separation of iron as a quencher

A method is proposed for the luminescence determination of neptunium in natural waters with the removal of interfering iron. For the separation of iron ionic and colloidal species, solid-phase extraction with N -benzoyl-phenylhydroxylamine as a complexing reagent is used. The method makes possible t...

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Bibliographic Details
Published inJournal of analytical chemistry (New York, N.Y.) Vol. 68; no. 3; pp. 249 - 252
Main Authors Mogilevskii, A. N., Malofeeva, G. I., Fabelinskii, Yu. I., Lavrinovich, E. A., Petrukhin, O. M., Novikov, A. P., Spivakov, B. Ya
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.03.2013
Springer
Subjects
Analytical Chemistry
Chemical properties
Chemistry
Chemistry and Materials Science
Composition
Identification and classification
Iron
Luminescence
Methods
Micropollutants
Neptunium
Separation (Technology)
Water chemistry
Russia
iron
luminescence
neptunium
crystal phosphor
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Summary:A method is proposed for the luminescence determination of neptunium in natural waters with the removal of interfering iron. For the separation of iron ionic and colloidal species, solid-phase extraction with N -benzoyl-phenylhydroxylamine as a complexing reagent is used. The method makes possible the reduction of iron concentration in samples by more than two orders of magnitude without noticeable losses of neptunium and, therefore, the attainment of a detection limit for neptunium equal to its value in samples containing no iron.
ISSN:1061-9348
1608-3199
DOI:10.1134/S1061934813030076