Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Colorimetry (C) (15) Enzymatic Assay (EZA) (2) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (2) Gas Chromatography (GC) (38) Gas Chromatography/Mass Spectrometry (GC/MS) (13) Headspace Gas Chromatography (GC) (15) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (118) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (6) Immunoassay (IA) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (35) Ion Specific Electrode (ISE) (2) Sample Type (-) Serum or Plasma (1) (-) Urine (1) Test Area Drugs of Abuse (2) Test Category Hallucinogens (2) Test Sub-Category Other (2) Test Test Name 2541SP LSD Screen, Serum/Plasma 2541U LSD Screen, Urine