Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (23) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (3) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (17) High Performance Liquid Chromatography/Tandem Quadrupole Time of Flight Mass Spectrometry. (4) Sample Type Blood (1) Fluid (1) Serum or Plasma (1) Test Area Drugs of Abuse (5) Exposure (1) (-) Therapeutics (3) Test Category Muscle Relaxants (3) Test Sub-Category Opiates/Opioids (3) (-) Other (3) Your search has returned no tests.