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A simple and rapid technique for recovery of 99mTc from low specific activity (n,gamma)99Mo based on solid-liquid
Sankha Chattopadhyay1, Sujata Saha Das, Luna Barua
1Radiopharmaceuticals Laboratory, Board of Radiation and Isotope Technology (BRIT), Variable Energy Cyclotron Centre (VECC), 1/AF, Bidhan Nagar, Kolkata, India. sankha@veccal.ernet.in
Abstract:
A simple and inexpensive method has been developed for the separation of (99m)Tc from (99)Mo produced from the neutron activation of (98)Mo by (98)Mo(n,gamma)(99)Mo nuclear reaction. The recovery of (99m)Tc was performed by solid-liquid extraction based on alumina column chromatography. The overall radiochemical yield for the complete separation of (99m)Tc was 85-97% (n=5). The separated Na[(99m)Tc]TcO(4) was of high radionuclidic, radiochemical and chemical purities. The method can be adopted for routine processing and use of (99m)Tc in radiopharmacy operations.
