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 (GC) (4) Gas Chromatography/Mass Spectrometry (GC/MS) (4) Headspace Gas Chromatography (GC) (5) Hematofluorometry (H) (1) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (10) (-) Spectrophotometry (SP) (1) Sample Type (-) Blood (1) Urine (2) Test Area (-) Exposure (1) Test Category Biomarkers (1) Test Sub-Category Other (1) Test Test Name 2887B Methemoglobin, Blood