Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Enzyme-Linked Immunosorbent Assay (ELISA) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (1) (-) Headspace Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (16) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (3) (-) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) (-) Spectrophotometry (SP) (1) Sample Type (-) Blood (3) RBCs (1) Serum or Plasma (3) Urine (1) Test Area Exposure (3) Test Category Biomarkers (1) Metals/Elements (1) Volatiles (1) Test Sub-Category Other (2) Toxic Elements (1) Test Test Name 4190B Silicon, Blood 4232B Styrene, Blood 4235B Sulfhemoglobin, Blood