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) (3) Enzyme-Linked Immunosorbent Assay (ELISA) (5) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (2) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (5) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (2) Sample Type Blood (2) (-) Fluid (2) (-) Serum or Plasma (2) Tissue (2) (-) Umbilical Cord (1) Urine (2) Test Area Newborn Tox (1) Therapeutics (4) Test Category Analgesics (4) Drugs of Abuse (1) Test Sub-Category Opiates/Opioids (4) Other (1) Your search has returned no tests.