Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (2) 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 4355B Tetrahydrofuran, Blood 4510B Toluene, Blood