Employee Drug Testing Information for GC/MS - Gas Chromatography/Mass Spectrometry
- Gas Chromatography/Mass Spectrometry
- GC/MS
- GC/MS is utilized to confirm test results that indicate any level of a controlled substance. When a laboratory suspects adulterants, dilution, or other sample abnormality, GC/MS will identify the exact chemicals compounds present in suspicious samples. GC/MS testing is considered to be the most definitive method for confirming the presence of a detected substance in urine.
