Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) Gas Chromatography (GC) (19) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Headspace Gas Chromatography (GC) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (80) High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS) (5) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (16) (-) Inductively Coupled Plasma/Optical Emission Spectrometry (ICP/OES) (2) Spectrophotometry (SP) (1) Sample Type Blood (1) (-) Hair (1) Nails (1) (-) Serum or Plasma (1) Urine (11) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category Toxic Elements (1) Trace Elements (1) Test Test Name 4190SP Silicon, Serum/Plasma 4844H Zinc, Hair