GC/MS confirmation is a sophisticated analytical technique used to unequivocally identify and quantify specific substances within a urine sample. Gas Chromatography (GC) separates the various components of the sample, while Mass Spectrometry (MS) then fragments these separated components and measures their mass-to-charge ratio. This process generates a unique 'fingerprint' for each substance, providing highly reliable identification and ruling out potential interferences. It is considered a definitive method for confirming the presence of drugs or other compounds.
GC/MS confirmation
Mass-spec confirmation of a screen.