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) (10) Enzymatic Assay (EZA) (1) Gas Chromatography (GC) (24) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Gas Chromatography/Tandem Mass Spectrometry (GC-MS/MS) (1) Headspace Gas Chromatography (GC) (3) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (28) (-) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (2) Refractometer (REF) (2) Sample Type Fluid (1) Stool (1) Test Area Drugs of Abuse (1) (-) Exposure (2) Therapeutics (1) Test Category Metals/Elements (2) Test Sub-Category Macrominerals (2) Test Test Name 3765FL Phosphorus - Total, Fluid 3765ST Phosphorus - Total, Stool