Exact(57)
Both fractions were counted for radioactivity in a gamma counter.
Both samples were vortexed (1 min), centrifuged (3,000 g, 3 min), and counted for radioactivity.
Tissues were washed in PBS and blot dried, weighed, and counted for radioactivity.
Aliquots from each phase (50 μL) were counted for radioactivity in a gamma counter.
All fractions, including the Sep Pak® cartridge, were counted for radioactivity using an automatic gamma counter.
After 48 h post injection, mice were sacrificed and organs were counted for radioactivity (Table 5).
Elution fractions of 30 s were collected and counted for radioactivity.
Tissues were weighed, counted for radioactivity and corrected for background radioactivity and radioactivity decay.
Similar(3)
Duplicates of blood samples were analyzed by gamma counting for radioactivity and TLC for chemical stability.
These areas were excised and counted for gamma radioactivity.
After a 4 hour incubation period, the supernatants were harvested and counted for released radioactivity.
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