Preparation and evaluation of SnO2-based 68Ge/68Ga generator made from 68Ge produced through (nat)Zn(α,xn) reaction

Autor: Sankha Chattopadhyay, M.K. Das, Madhusmita, Sujata Saha Das, Md. Nayer Alam, Luna Barua
Rok vydání: 2012
Předmět:
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 79
ISSN: 1872-9800
Popis: 68 Ge was produced by nat Zn(α, x n) 68 Ge reaction and its production yield was 31.82 kBq/μA h (0.86 μCi/μA h) at the end of irradiation (EOI). A simple chromatographic method using a SnO 2 column was employed to separate 68 Ge from the target material and the co-produced non-isotopic radioisotope impurities. 68 Ge retained in the column served as the 68 Ge/ 68 Ga generator. Elution efficiency of the column was about 60%. First 2 ml of the eluate contained more than 95% of the elutable activity. Post-elution purification cum concentration was done with a small cation exchange resin column. The presence of the inactive tin ions in the 68 Ga eluate was determined by the ICP-OES technique and was found to be about 0.03 ppm. Radiochemical purity of the final 68 Ga preparation was more than 99.99% and it was found to be suitable for making complex with ethylenediamine-N,N,N′,N′-tetrakis(methylene phosphonic acid) (EDTMP).
Databáze: OpenAIRE