What do gcms test for

By applying heat directly to the sample, the molecule can be broken down in a reproducible way. Moreover, you can count on fast turnaround times, accurate data and person-to-person service, ensuring you understand the information that you receive. Finally, please complete the form to have an expert contact you on how we can use this technique to analyze your material.

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Ask EAG. To find out more, please see our privacy policy. Mass spectrometry MS is a technique that analytically categorizes the ions based on their mass to charge ratio, and ionizes atoms, molecules, ions, molecular fragments and other chemical species. A mass spectrometry analysis may be used for both complex mixtures and pure samples. Mass spectrometry often requires a very pure sample, and gas chromatography employ detectors that cannot separate varied molecules that travel at the same retention time through the GC column.

At times, different molecules with related pattern of ionized fragments. In order to conduct gas chromatography, scientists first inject the analyte, a liquid or gaseous sample, into a gas chromatograph pictured. The gas chromatograph separates the various compounds within the sample by channeling the sample through a narrow tube called a column.

Different compounds within the sample are separated by interacting with the stationary phase and eluting at different times. Scientists can identify each compound within the sample based on its elution time and how it interacts with the stationary phase. Mass spectrometry can also be conducted as a stand-alone technique to measure mass-to-charge ratios. When undergoing mass spectrometry, the sample is injected into a mass spectrometer and bombarded with electrons.