Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (2) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (1) Sample Type 24 Hour Urine (1) Blood (13) Fluid (2) Hair (3) Liquid (3) (-) Nails (2) RBCs (5) Serum or Plasma (14) Urine (13) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category Toxic Elements (1) Trace Elements (1) Test Test Name 4180N Selenium, Nails 4370N Thallium, Nails