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) (1) Gas Chromatography (GC) (17) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (4) Headspace Gas Chromatography (GC) (3) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (50) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (3) Sample Type Blood (2) Serum or Plasma (1) Tissue (1) Test Area Exposure (2) (-) Therapeutics (4) Test Category Anesthetics (2) Antihistamines (2) Test Sub-Category Barbiturates (3) Opiates/Opioids (4) (-) Other (4) Your search has returned no tests.