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Development of a High Performance Zinc-62/copper-62 Radionuclide Generator for Positron Emission Tomography by Jamal Zweit; Robert Goodall; Mark Cox; John W. Babich; Gerard A. Potter; Harbans L. Sharma; Robert J. Ott is a Medicine article available to read on EtoBox.

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Clinical utilisation of positron emission tomography could be enhanced by the availability of short-lived radionuclides derived from generator systems. The zinc-62/copper-62 combination is one such system which could be used as a source for a number of copper-62 radiopharmaceuticals. We have developed and optimised a high activity (5.6 GBq, 150 mCi) zinc-62/copper-62 generator to provide 62Cu in a form that is suitable for direct labelling of pyruvaldehyde-bis-(N4-methylthiosemicarbazone)-copper(II), Cu(PTSM). The distribution coefficients of Zn(II) and Cu(II) between anion-exchange resin and various hydrochloric acid/organic solvent mixtures were measured. Based on these measurements a generator eluent of 0.3 M HCl/40% ethanol provided 62Cu in greater than 90% yield in a 3-ml volume. A very low 62Zn breakthrough of less than 3 x 10(-7)% was achieved. Copper-PTSM was successfully labelled with the no-carrier-added 62Cu eluent directly from the generator with 94% radiochemical yield.

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Author

Jamal Zweit; Robert Goodall; Mark Cox; John W. Babich; Gerard A. Potter; Harbans L. Sharma; Robert J. Ott

Publisher

Springer; Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC; Society for Mining, Metallurgy and Exploration Inc. (ISSN 0340-6997)

Published

1992

Language

EN

Field

Medicine (Health Sciences)