caa a22 4500 46910953X CHVBK 20180323133106.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF02039933 doi (NATIONALLICENCE)springer-10.1007/BF02039933 Separation and electrodeposition of226Ra [Elektronische Daten] [J. Flores-Mendoza, J. Iturbe, M. Jimenez-Reyes] The chemical behavior of calcium, barium and radium in the ion exchange resins Dowex 50W-X8, AG 50W-X8 and Merk I in the presence of ammonium tartrate, EDTA, and citrate has been studied. No differences were observed in results while using any one of the three resins. Calcium, barium and radium were fixed to the exchange column at pH 4.8 EDTA solution. Calcium was eluted in an EDTA solution at pH 5.3, barium and radium between pH 8-11. Elution in citrate media for calcium was achieved at pH 6.1 and for radium at pH 10. In ammonium tartrate, calcium was eluted at pH 6, barium and radium at pH 11.5. Radium was also eluted from the ion exchange resins with a 2M nitric acid solution. The radium free of calcium was electrodeposited onto a stainless steel disc cathode using a 0.1 M potassium fluoride solution, pH 12-14, with a yield of >50%. The energies of226Ra were analyzed through high resolution α-spectra. The226Ra utilized for these experiments was separated from Mexican carnotite. Akadémiai Kiadó, 1992 Flores-Mendoza J. Departamento de Quimica, Instituto Nacional de Investigaciones Nucleares, Col. Escandon, Apdo. Postal 18. 1027, 11801, Mexico, D. F., (Mexico) aut Iturbe J. Departamento de Quimica, Instituto Nacional de Investigaciones Nucleares, Col. Escandon, Apdo. Postal 18. 1027, 11801, Mexico, D. F., (Mexico) aut Jimenez-Reyes M. Departamento de Quimica, Instituto Nacional de Investigaciones Nucleares, Col. Escandon, Apdo. Postal 18. 1027, 11801, Mexico, D. F., (Mexico) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/1(1992-09-01), 131-138 0236-5731 162:1<131 1992 162 10967 https://doi.org/10.1007/BF02039933 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02039933 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Flores-Mendoza J. Departamento de Quimica, Instituto Nacional de Investigaciones Nucleares, Col. Escandon, Apdo. Postal 18. 1027, 11801, Mexico, D. F., (Mexico) aut NATIONALLICENCE 700 1- Iturbe J. Departamento de Quimica, Instituto Nacional de Investigaciones Nucleares, Col. Escandon, Apdo. Postal 18. 1027, 11801, Mexico, D. F., (Mexico) aut NATIONALLICENCE 700 1- Jimenez-Reyes M. Departamento de Quimica, Instituto Nacional de Investigaciones Nucleares, Col. Escandon, Apdo. Postal 18. 1027, 11801, Mexico, D. F., (Mexico) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/1(1992-09-01), 131-138 0236-5731 162:1<131 1992 162 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer