Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzymatic Assay (EZA) (2) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (1) Gas Chromatography (GC) (49) Gas Chromatography/Mass Spectrometry (GC/MS) (19) Headspace Gas Chromatography (GC) (22) Hematofluorometry (H) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (140) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (7) Immunoassay (IA) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (32) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Ion Specific Electrode (ISE) (2) Spectrophotometry (SP) (1) Sample Type (-) Serum or Plasma (1) Urine (1) Test Area Drugs of Abuse (1) Test Category Hallucinogens (1) Test Sub-Category Other (1) Test Test Name 2541SP LSD Screen, Serum/Plasma