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) (3) Sample Type Blood (1) Serum or Plasma (1) Urine (1) Test Area Drugs of Abuse (2) (-) Exposure (3) Test Category Alcohols (6) Chemicals (1) Herbicides (2) Industrial/Environmental Toxins (1) Metals/Elements (14) Perfluorinated Compounds (2) Pesticides/Insecticides (3) Plasticizers (1) (-) Solvents (3) Volatiles (10) Test Sub-Category Other (3) Test Test Name 4030B Pyridine, Blood 4030SP Pyridine, Serum/Plasma 4030U Pyridine, Urine