[Poster] Microdosing studies: a consideration on analytical technology choice

Microdosing has been used as an investigative pharmacokinetic tool for approximately 10 years. Initial skepticism of the value of these studies was followed by investigative clinical trials to understand the circumstances when they provide useful data and this has led to routine use. When first introduced, accelerator mass spectrometry coupled with LC fractionation (LC+AMS) was the only technology that could provide the sensitivity required for these studies. Over the years, LC-MS/MS sensitivity has improved so that it is now viable to use this technique for microdosing studies, and a decision needs to be made on what technique to use.