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) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (1) Sample Type (-) Blood (2) Serum or Plasma (3) Urine (1) Test Area Exposure (2) Test Category Herbicides (2) Test Sub-Category Herbicides (2) (-) Other (2) Test Test Name 2278B Herbicides Panel 2, Blood 3325B Paraquat, Blood