GC/MS Confirmation

Urine Kits with GC/MS Confirmation Bundles. GC/MS is the abbreviation for gas chromatography/mass spectrometry, the testing methodology LabCorp uses to confirm presumptive positive drug screen specimens. GC/MS provides identification of the molecule(s) based on characteristic fragmentation patterns at specific retention times. GC/MS is a tandem technology, utilizing a gas chromatograph coupled to a mass spectrometer.