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) (1) Sample Type Blood (1) RBCs (1) (-) Serum or Plasma (1) Test Area Drugs of Abuse (2) (-) Exposure (1) Therapeutics (2) Test Category (-) Biomarkers (1) Metals/Elements (4) Pesticides/Insecticides (1) Volatiles (1) Test Sub-Category Other (1) Test Test Name 4239SP Sulfide Exposure Biouptake Marker, Serum/Plasma