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) (4) (-) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (2) Sample Type (-) Blood (1) Serum or Plasma (1) (-) Urine (1) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category (-) Toxic Elements (2) Test Test Name 4190B Silicon, Blood 4190U Silicon, Urine