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) (-) Enzyme-Linked Immunosorbent Assay (ELISA) (1) Gas Chromatography (GC) (15) Gas Chromatography/Mass Spectrometry (GC/MS) (7) Headspace Gas Chromatography (GC) (7) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (43) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (18) (-) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Ion Specific Electrode (ISE) (1) Sample Type Blood (1) Fluid (1) Hair (1) Serum or Plasma (1) (-) Stool (1) Tissue (1) (-) Urine (1) Test Area Drugs of Abuse (1) Exposure (1) Test Category Hallucinogens (1) Metals/Elements (1) Test Sub-Category Macrominerals (1) Other (1) Test Test Name 2541U LSD Screen, Urine 2551ST Magnesium - Total, Stool