A Gas Chromatography Mass Spectrometer (GCMS) is an analytical laboratory analysis of an applicant’s urine sample to detect and confirm the presence of drugs, including the levels of each drug detected. A GCMS assessment is used as a confirmatory process following a non-negative instant urine drug test.
What is a GCMS (Non-Negative Confirmatory Testing) check? Print
Modified on: Fri, 2 Dec, 2022 at 9:28 AM
Did you find it helpful? Yes No
Send feedbackSorry we couldn't be helpful. Help us improve this article with your feedback.