Sensitive screening of synthetic cannabinoids using liquid chromatography quadrupole time-of-flight mass spectrometry after solid phase extraction Posted on August 24, 2021February 3, 2022 By Becky Carter Jan-Niklas Kleis, Cornelius Hess et al Drug Testing and Analysis; 13:1535–1551; 2021 Download the article here or here Cannabis and Cannabinoids, Chemistry, Seized Drugs/Controlled Substances