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) (9) Enzyme Immunoassay (EIA) (3) Gas Chromatography (GC) (8) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (7) Headspace Gas Chromatography (GC) (5) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (26) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (13) (-) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Refractometer (REF) (2) Sample Type (-) Fluid (1) Hair (1) Stool (1) Test Area Exposure (1) Test Category Metals/Elements (1) Test Sub-Category Macrominerals (1) Test Test Name 2551FL Magnesium - Total, Fluid