Journal of Radioanalytical and Nuclear Chemistry

, Volume 263, Issue 2, pp 553–557

Production of high specific activity <Superscript>68</Superscript>Ge at Brookhaven National Laboratory


  • G. E. Meinken
    • Brookhaven National Laboratory
  • S. Kurczak
    • Brookhaven National Laboratory
  • L. F. Mausner
    • Brookhaven National Laboratory
  • K. L. Kolsky
    • Brookhaven National Laboratory
  • S. C. Srivastava
    • Brookhaven National Laboratory

DOI: 10.1007/s10967-005-0091-4

Cite this article as:
Meinken, G., Kurczak, S., Mausner, L. et al. J Radioanal Nucl Chem (2005) 263: 553. doi:10.1007/s10967-005-0091-4


Germanium-68 is produced at the Brookhaven Linac Isotope Producer (BLIP) by irradiating natGa targets with ~45 MeV protons. Typical irradiation yields are 17.4 GBq (470 mCi) from a 4 week irradiation (0.52 MBq/µAh). Germanium-68 is recovered from the target by extraction into 4N HCl and 30% H2O2. Further purification is achieved by extraction into carbon tetrachloride and back-extraction into H2O. Recovery yields are greater than 85%, with greater than 99% radiopurity, and activity concentrations are greater than 3.15 GBq/ml (85 mCi/ml). The final pH of the product solution, which is 0.03M diethylenetriaminepentaacetate (DTPA), can now be adjusted to user specifications.

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