Methodological problems, notably those involving patients with long transit times [ 34], collection of all stool samples, avoidance of interfering behaviours and suitable methods for measuring radioactivity in blood and stool, were identified early on.
Therefore, the non-uniform Chang's AC method is considered to be much more advantageous than the OS-EM AC method for the quantification of absolute radioactivity in the liver.
"Much of the work we present here was used to develop and validate a rapid radioactivity measurement method for a federal agency," says lead author Andrew Nelson, a Presidential Graduate Research Fellow and PhD candidate in human toxicology.
To address this problem, we developed an economical, radioactivity-free method for assessing serum half-life and tissue distribution of nanoparticles in mice.
This water is radioactive because many plants fail to test for radioactivity before discharging the wastewater.
"Discriminating electret radioactivity detector system and method for measuring radon concentration", 1992.
He said he did not test for radioactivity.
The testing for radioactivity was not related to more recent cases of organ retention.
I imagined a three-petalled flower, or the symbol for radioactivity.
Finally, the three fractions were measured for radioactivity on a gamma counter calibrated for 89Zr.
