Pre-cleaned bare wooden toothpicks for the determination of drugs in oral fluid by mass spectrometry Posted on March 29, 2022May 23, 2022 By Becky Carter Jaime Millán-Santiago, Rafael Lucena & Soledad Cárdenas Anal Bioanal Chem; 2022 Access article Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, Seized Drugs/Controlled Substances, Toxicology