Fast clean up of whole blood using Phree Phospholipid Removal and analysis of 39 pain management drugs

Whole blood is a common matrix for toxicology testing, yet it can be very complicated to clean up. Using Phree Phospholipid Removal as a pass through with an easy protein precipitation, the whole blood matrix is efficiently cleaned up while still yielding high recoveries and low variation before analysis on LC MS/MS using a Kinetex Biphenyl LC column.