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) Enzyme-Linked Immunosorbent Assay (ELISA) (4) Enzyme Immunoassay (EIA) (2) Gas Chromatography (GC) (48) Gas Chromatography/Mass Spectrometry (GC/MS) (7) Headspace Gas Chromatography (GC) (8) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (73) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (3) (-) Immunoassay (IA) (2) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (12) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Spectrofluorometry (SF) (2) Spectrophotometry (SP) (3) Sample Type (-) Serum or Plasma (2) Test Area Test Category Test Sub-Category Test Test Name 1613SP Digitoxin, Serum/Plasma 1788SP Acetaminophen, Serum/Plasma