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/Mass Spectrometry (GC/MS) (2) Sample Type (-) Blood (1) (-) Serum or Plasma (1) Urine (1) Test Area Exposure (2) Test Category (-) Acids (2) Antidepressants (2) Test Sub-Category Carboxylic Acids (2) Test Test Name 2134B Formic Acid, Blood 2134SP Formic Acid, Serum/Plasma