A Patient Is Injected with a 5 M Solution of Gallium Citrate Containing Radioactive Gallium-68 for a of Gallium
A patient is injected with a 5.0 M solution of gallium citrate containing radioactive gallium-68 for a PET study. The half-life of gallium-68 is 9.4 hr. How long does it take for the activity of this isotope to drop to 1% of its initial value?
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