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 Blood (3) Serum or Plasma (3) (-) Urine (3) Test Area Drugs of Abuse (2) (-) Exposure (3) Test Category Metals/Elements (3) Test Sub-Category Biomarkers (1) Other (4) (-) Toxic Elements (3) Test Test Name 4190U Silicon, Urine 4200U Silver, Urine 4212U Strontium, Urine