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) (1) Sample Type Blood (2) (-) Serum or Plasma (1) Urine (2) Test Area Exposure (1) Test Category Acids (1) Analgesics (4) Anesthetics (3) Antidepressants (4) Antidiabetics (2) Antiepileptics/Antiseizures (3) Antihistamines (1) Antihypertensives (3) Antimicrobials (1) Antineoplastics (1) Antiparkinsons (1) Antipsychotics (6) Antirheumatics (1) Biomarkers (2) Bronchodilators (2) Cholinesterase Inhibitors (1) Depressants (1) Diuretics (1) Immunosuppressants (2) Metals/Elements (6) Muscle Relaxants (1) Sedative/Hypnotics (2) (-) Solvents (1) Stimulants (1) Sympathomimetic Amines (1) Terpenes (1) Vasodilators (1) Volatiles (1) Test Sub-Category Other (1) Test Test Name 4355SP Tetrahydrofuran, Serum/Plasma