Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Colorimetry (C) (2) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (2) Sample Type Urine (2) Test Area Exposure (2) Test Category Biomarkers (1) (-) Metals/Elements (2) Other (1) Solvents (1) Volatiles (2) Test Sub-Category (-) Other (2) Toxic Elements (1) Trace Elements (1) Test Test Name 4180U Selenium, Urine 4370U Thallium, Urine