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) (4) Gas Chromatography (GC) (73) Gas Chromatography/Mass Spectrometry (GC/MS) (11) Headspace Gas Chromatography (GC) (8) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (118) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (4) (-) Immunoassay (IA) (2) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (28) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (5) Spectrofluorometry (SF) (1) Spectrophotometry (SP) (4) Sample Type Serum or Plasma (2) Test Area (-) Therapeutics (2) Test Category Analgesics (1) Antiarrhythmics (1) Test Sub-Category Antipyretics (1) Cardiac Glycosides (1) Test Test Name 1613SP Digitoxin, Serum/Plasma 1788SP Acetaminophen, Serum/Plasma