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) Gas Chromatography (GC) (5) Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS) (1) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (14) High Performance Liquid Chromatography/Time of Flight-Mass Spectrometry (LC/TOF-MS) (1) (-) Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) (2) Sample Type Blood (1) Fluid (1) Hair (1) Nails (1) (-) RBCs (1) Serum or Plasma (1) Tissue (1) (-) Urine (1) Test Area Exposure (2) Test Category Metals/Elements (2) Test Sub-Category Other (1) Toxic Elements (1) Test Test Name 3140R Nickel, RBCs 3140U Nickel, Urine