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) (2) (-) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (14) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (3) Spectrophotometry (SP) (3) Sample Type Serum or Plasma (1) Test Area Exposure (1) Test Category Antiparkinsons (1) (-) Biomarkers (1) Test Sub-Category Other (1) Test Test Name 4239SP Sulfide Exposure Biouptake Marker, Serum/Plasma