GC/MS Confirmatory Instrument Drug Testing

Confirmatory Drug Testing

Faint test results? Get the exact quantity of the drug today and say bye bye to screening drug testing cups!

Staffed by toxicology professionals using the most sophisticated equipment and technology available, the GC/MS lab provides the most accurate drug test results possible and delivers answers with absolute discretion. 

Interested to read more about GC/MS, just keep reading the content below. Want to order the GC/MS test: just click here.

How the Lab Analyzes Drug Test Urine Samples

    • Every day, the laboratory processes over 70,000 urine specimens.

    • All test results are made confidentially available 24 hours a day, seven days a week by phone or online.

    • Lab technicians use a sophisticated instrument called Gas Chromatography/Mass Spectrometry or GC/MS for short to test the samples. GC/MS is considered the gold standard in laboratory testing for most drugs. This technology employs two different methods of chemical analysis to identify and measure drug substances present in the urine sample.

    • The Gas Chromatography (GC) portion of the instrument separates the complicated chemical mixture found in the urine sample into pure chemicals based on the speed at which the chemicals turn into a gas. Some drug chemicals (usually smaller molecules) turn into gas more quickly than other chemicals (those made of larger molecules).

    • Next, the Mass Spectrometer (MS) portion of the instrument identifies specific drug chemicals based on their structure, determining the molecular weight of the chemicals identified during the Gas Chromatography process. An ion source bombards the urine sample's molecules with electrons, breaking them apart and turning them into positively charged ions. These ions are passed through an electromagnetic filter which sorts the particles based on their molecular weight. A detector counts the number of ions with each specific mass and feeds this data into a computer.

    • The GC/MS process produces a detailed report of the chemicals found in the urine sample, even listing the number of nanograms of each compound present in the sample.

  • Positive samples are reported with a nanogram per milliliter (ng/ml) cutoff level and sent to you via email. If you need to contact us, please email at support@medtechapproved.com

  • The nanogram level cannot tell you how much of a drug was used nor will it indicate a time frame as to when a drug was used. It may be helpful, however, in monitoring a chronic or everyday user of marijuana to determine when the drug is leaving the system.

Before taking the test, users must read all of the content in the package insert.



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