We are performing an experiment using half-life =4.5 x 10^3 days labeled phenylalanine in which the five atomic hydrogens are labeled.To perform the experiment, the initial activity cannot be lower than 10% of the initial activity when the sample was received. Calculate how long after receiving the sample can you wait before performing the experiment?
Guidance: I know activity is proportional to concentration of the radioisotope.© BrainMass Inc. brainmass.com October 10, 2019, 12:49 am ad1c9bdddf
To perform the experiment, you want A(t) at least equal to 90% of A(0), that is A(t)/A(0) >= 0.9
Half life of ...
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