Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 145: Issue 6
Activation analysis of Se in biological samples through75Se and77mSe
Authors:
M. Navarrete National University of Mexico Faculty of Chemistry Bldg. D, CU 04510 Mexico City Mexico

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L. Cabrera National University of Mexico Faculty of Chemistry Bldg. D, CU 04510 Mexico City Mexico

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N. Deschamps Laboratoire Pierre Süe, CEN-Saclay 91191 Gif sur Yvette Cédex France

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N. Boscher Laboratoire Pierre Süe, CEN-Saclay 91191 Gif sur Yvette Cédex France

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G. Revel Laboratoire Pierre Süe, CEN-Saclay 91191 Gif sur Yvette Cédex France

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J. Meyer Service du Réacteur Universitaire de Strasbourg 17 Rue Becquerel 67037 Strasbourg Cédex France

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A. Stampfler Service du Réacteur Universitaire de Strasbourg 17 Rue Becquerel 67037 Strasbourg Cédex France

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Pages:
445–452
Online Publication Date:
27 Sep 2005
Publication Date:
17 Aug 1990
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02163717
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Abstract  

A method is described to separate trace amounts of selenium in biological samples without using a carrier. This method is based on the adsorption on active carbon of the complex ion formed with APDC /ammonium salt of l-pyrrolidine carbodithioic acid/ at pH 1. The efficiency of the radiochemical separation described is measured by using carrier-free75Se labelled solutions of sodium selenite at selenium concentrations from 3.5×10–8 to 3.5×10–11 g ml–1. The results were between 95% and 98% with statistical variations from 2% to 10%. The determination of selenium can be made following this separation either through75Se in the traditional way, or through77mSe if the separation is performed prior to irradiation. The detection limits on the available conditions were 0.01 ppm for75Se and 0.1 ppm for77mSe. When the analysis is performed through75Se /t=120 d/, the statistical error is notably smaller because the counting time may be considerable, whereas through77mSe/t=17.5 s/it is higher than 20%, depending on the concentration and the available neutron flux. However, the advantages of gaining time and the fact of performing the trace separation from a non radioactive material, make both procedures competitive as useful tools for the research on the function of Se in vertebrates.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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