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) (1) Sample Type (-) Blood (1) Serum or Plasma (1) Test Area Exposure (1) Test Category Acids (1) Anesthetics (3) Antidepressants (2) Antiepileptics/Antiseizures (1) Antipsychotics (5) (-) Depressants (1) Sedative/Hypnotics (1) Terpenes (1) Volatiles (3) Test Sub-Category Sedative-Hypnotics (1) Test Test Name 4640B Trichloroethanol - Free, Blood