In the Olympics and other major athletic competitions, a GC-MS is used to screen athletes for their use of banned substances such as steroids.

In the Olympics and other major athletic competitions, a GC-MS is used to screen athletes for their use of banned substances such as steroids. If an analytical method has been developed and the retention time for a particular anabolic steroid has been determined, how might you use this method to determine the possibility of the use of anabolic steroids by an athlete?