Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (9) (-) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Spectrophotometry (SP) (2) Sample Type Serum or Plasma (1) Test Area Exposure (1) Test Category Antiparkinsons (1) (-) Biomarkers (1) Test Sub-Category Other (1) Your search has returned no tests.