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) (1) Gas Chromatography (GC) (1) Gas Chromatography/Mass Spectrometry (GC/MS) (2) Headspace Gas Chromatography (GC) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Refractometer (REF) (2) (-) Spectrophotometry (SP) (1) Sample Type Blood (1) Urine (1) Test Area Exposure (2) Test Category Alcohols (1) (-) Biomarkers (1) Metals/Elements (7) (-) Solvents (1) Test Sub-Category Other (2) Test Test Name 2887B Methemoglobin, Blood 3098U Mono-n-butyl phthalate (MNBP), Urine