caa a22 4500 465731112 CHVBK 20180323111741.0 cr unu---uuuuu 170327e19900801xx s 000 0 eng 10.1007/BF02163717 doi (NATIONALLICENCE)springer-10.1007/BF02163717 Activation analysis of Se in biological samples through75Se and77mSe [Elektronische Daten] [M. Navarrete, L. Cabrera, N. Deschamps, N. Boscher, G. Revel, J. Meyer, A. Stampfler] 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. Akadémiai Kiadó, 1990 Navarrete M. Faculty of Chemistry, National University of Mexico, Bldg. D, CU, 04510, Mexico City, Mexico aut Cabrera L. Faculty of Chemistry, National University of Mexico, Bldg. D, CU, 04510, Mexico City, Mexico aut Deschamps N. Laboratoire Pierre Süe, CEN-Saclay, 91191, Gif sur Yvette Cédex, France aut Boscher N. Laboratoire Pierre Süe, CEN-Saclay, 91191, Gif sur Yvette Cédex, France aut Revel G. Laboratoire Pierre Süe, CEN-Saclay, 91191, Gif sur Yvette Cédex, France aut Meyer J. Service du Réacteur Universitaire de Strasbourg, 17 Rue Becquerel, 67037, Strasbourg Cédex, France aut Stampfler A. Service du Réacteur Universitaire de Strasbourg, 17 Rue Becquerel, 67037, Strasbourg Cédex, France aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 145/6(1990-08-01), 445-452 0236-5731 145:6<445 1990 145 10967 https://doi.org/10.1007/BF02163717 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02163717 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Navarrete M. Faculty of Chemistry, National University of Mexico, Bldg. D, CU, 04510, Mexico City, Mexico aut NATIONALLICENCE 700 1- Cabrera L. Faculty of Chemistry, National University of Mexico, Bldg. D, CU, 04510, Mexico City, Mexico aut NATIONALLICENCE 700 1- Deschamps N. Laboratoire Pierre Süe, CEN-Saclay, 91191, Gif sur Yvette Cédex, France aut NATIONALLICENCE 700 1- Boscher N. Laboratoire Pierre Süe, CEN-Saclay, 91191, Gif sur Yvette Cédex, France aut NATIONALLICENCE 700 1- Revel G. Laboratoire Pierre Süe, CEN-Saclay, 91191, Gif sur Yvette Cédex, France aut NATIONALLICENCE 700 1- Meyer J. Service du Réacteur Universitaire de Strasbourg, 17 Rue Becquerel, 67037, Strasbourg Cédex, France aut NATIONALLICENCE 700 1- Stampfler A. Service du Réacteur Universitaire de Strasbourg, 17 Rue Becquerel, 67037, Strasbourg Cédex, France aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 145/6(1990-08-01), 445-452 0236-5731 145:6<445 1990 145 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 465731112 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer