caa a22 4500 465733093 CHVBK 20180323111746.0 cr unu---uuuuu 170327e19900301xx s 000 0 eng 10.1007/BF02225705 doi (NATIONALLICENCE)springer-10.1007/BF02225705 Extraction of99Mo-molybdophosphate and99mTc-pertechnetate from various acid solutions by bis/2-ethylhexyl/ phosphoric acid [Elektronische Daten] [M. El-Kolaly, S. El-Bayoumy, M. Raieh] The extractability of99Mo-molybdophosphoric acid H3/PMo12O40/ and99mTc-pertechnetic acid /PTcO4/ in 20% (v/v) bis /2-ethylhexyl/ phosphoric acid /HDEHP/ in benzene has been investigated at different concentrations of HCl, HBr and HNO3 acids. The effect of extractant concentration and diluent on the extractability of molybdophosphoric and pertechnetic acids with 20% (v/v) HDEHP in benzene from different concentrations of HCl acid has also been studied.99Mo-molybdo-phosphoric acid was found to be selectively extracted and separated from99mTc-pertechnetic acid with 20% HDEHP in benzene at an acidity of about 0.49M HCl, HBr and HNO3. The extractability of H3/PMo12O40/ from these acids generally follows the decreasing order HBr>HCl>HNO3. The separation factors /Kd molybdophosphoric/Kd pertechnetic/ were found to be 12.9×105 and 7.6×105 for HBr and HCl, respectively. The extractability of pertechnetic acid follows the order HCl>HBr≫HNO3. Benzene is the diluent due to its radiation stability. A new procedure for the separation of99mTc from99Mo was suggested. Akadémiai Kiadó, 1990 El-Kolaly M. Radioisotope Production and Labelled Compounds Department, Nuclear Research Centre, Atomic Energy Authority, Cairo, Egypt aut El-Bayoumy S. Radioisotope Production and Labelled Compounds Department, Nuclear Research Centre, Atomic Energy Authority, Cairo, Egypt aut Raieh M. Radioisotope Production and Labelled Compounds Department, Nuclear Research Centre, Atomic Energy Authority, Cairo, Egypt aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 144/4(1990-03-01), 307-316 0236-5731 144:4<307 1990 144 10967 https://doi.org/10.1007/BF02225705 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02225705 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- El-Kolaly M. Radioisotope Production and Labelled Compounds Department, Nuclear Research Centre, Atomic Energy Authority, Cairo, Egypt aut NATIONALLICENCE 700 1- El-Bayoumy S. Radioisotope Production and Labelled Compounds Department, Nuclear Research Centre, Atomic Energy Authority, Cairo, Egypt aut NATIONALLICENCE 700 1- Raieh M. Radioisotope Production and Labelled Compounds Department, Nuclear Research Centre, Atomic Energy Authority, Cairo, Egypt aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 144/4(1990-03-01), 307-316 0236-5731 144:4<307 1990 144 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer