Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Headspace Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (7) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (3) (-) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (2) Sample Type (-) Fluid (1) Hair (1) (-) Stool (1) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category Macrominerals (2) Test Test Name 2551FL Magnesium - Total, Fluid 2551ST Magnesium - Total, Stool