Investigation and Resolution of Interference in the LC–QTOF-MS Detection of 4-MePPP Posted on April 10, 2023 By Becky Carter Darren R Allen, Christopher Warnholtz, Brett C McWhinney J Anal Tox; 46(2); 2022 Access article Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Forensic Pathology and Medicolegal Death Investigation, Seized Drugs/Controlled Substances, Toxicology