Am J Psychiatry 1981; 138:1247-1248
Copyright © 1981 by American Psychiatric Association
Tricyclic antidepressant sample stability and the vacutainer effect
M Zetin, HR Rubin and R Rydzewski
The authors studied the effects of different sample handling techniques on
17 tricyclic plasma samples. They found that the samples were stable at
room temperature for up to 3 days when kept in a glass tube sealed with
Parafilm, but the samples were not stable when stored in a Vacutainer tube
with the stopper in contact with the plasma.
