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) (2) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) (11) (-) Spectrophotometry (SP) (1) Sample Type Serum or Plasma (1) Test Area Therapeutics (1) Test Category (-) Antimicrobials (1) Biomarkers (2) Metals/Elements (52) Other (1) Test Sub-Category Antibiotics (1) Test Test Name 4245SP Sulfonamides, Undifferentiated, Serum/Plasma