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) (48) Enzymatic Assay (EZA) (2) Enzyme-Linked Immunosorbent Assay (ELISA) (9) Enzyme Immunoassay (EIA) (35) Gas Chromatography (GC) (82) (-) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (7) Gas Chromatography/Mass Spectrometry (GC/MS) (31) Headspace Gas Chromatography (GC) (28) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (215) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (9) High Performance Liquid Chromatography/Tandem Quadrupole Time of Flight Mass Spectrometry. (1) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (8) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (53) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (2) Ion Specific Electrode (ISE) (1) Refractometer (REF) (4) Sample Type Blood (13) Serum or Plasma (8) (-) Urine (7) Test Area Therapeutics (6) Test Category Analgesics (1) Antianxiety (1) Antidepressants (4) Test Sub-Category Opiates/Opioids (1) Other (2) Tricyclic (3) Your search has returned no tests.