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) (2) Sample Type (-) Blood (1) (-) Serum or Plasma (1) Urine (1) Test Area Exposure (2) Test Category Alcohols (2) Analgesics (6) Anesthetics (4) Anticholinergics (2) Antidepressants (6) Antiepileptics/Antiseizures (4) Antihistamines (1) Antimicrobials (2) Cholinesterase Inhibitors (2) Pesticides/Insecticides (2) (-) Solvents (2) Vasodilators (3) Volatiles (6) Test Sub-Category Other (2) Test Test Name 4030B Pyridine, Blood 4030SP Pyridine, Serum/Plasma