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) (7) Gas Chromatography (GC) (33) Gas Chromatography/Mass Spectrometry (GC/MS) (3) Headspace Gas Chromatography (GC) (7) Hematofluorometry (H) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (120) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (5) (-) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (2) Spectrophotometry (SP) (2) Sample Type Urine (2) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category (-) Other (2) Toxic Elements (38) Trace Elements (12) Test Test Name 4180U Selenium, Urine 4370U Thallium, Urine