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) (8) (-) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (2) Sample Type Blood (1) Serum or Plasma (1) Test Area Exposure (2) Test Category Analgesics (5) Antiarrhythmics (6) Anticholinergics (3) Antidepressants (8) Antiemetics (1) Antihistamines (5) Antihypertensives (5) Antithrombotics (4) Antitussives/Cough Suppressants (10) Cholinesterase Inhibitors (3) Diuretics (4) Drugs of Abuse (2) NPS/Designer Drugs (9) (-) Pesticides/Insecticides (2) Potassium Channel Blockers (2) Psychoactives (2) Vasodilators (2) Test Sub-Category Herbicides (2) Test Test Name 1789B Diquat, Blood 1789SP Diquat, Serum/Plasma