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) (4) Enzyme Immunoassay (EIA) (1) Gas Chromatography (GC) (25) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (4) Gas Chromatography/Mass Spectrometry (GC/MS) (1) (-) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (40) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (4) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (12) Sample Type Blood (2) (-) Serum or Plasma (1) (-) Urine (1) Test Area Exposure (2) Test Category Solvents (2) Test Sub-Category Other (2) Test Test Name 4355SP Tetrahydrofuran, Serum/Plasma 4355U Tetrahydrofuran, Urine