Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography/Mass Spectrometry (GC/MS) (3) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) (-) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) Spectrophotometry (SP) (2) Sample Type Serum or Plasma (2) Test Area Exposure (1) Therapeutics (1) Test Category (-) Antiparkinsons (1) (-) Biomarkers (1) Test Sub-Category Other (2) Your search has returned no tests.