Gas Chromatography Mass Spectrometer
Gas chromatography mass spectrometer is used to identify and quantify small (often volatile) organic molecules.
Gas chromatography mass spectrometer (GCMS) is an analytical technique that combines the separation capabilities of gas chromatography with the detection by mass spectrometry to identify different substances within a test sample.
Gas chromatography is used to separate the volatile and thermally stable organic compounds in a sample whereas MS fragments the analyte and identifies it by matching the mass of breakdown fragments through a compound database (NIST).
Headspace and SPME (solid phase micro-extraction) are two widely applicable sample introduction methods. They allow direct sampling of gaseous compounds for analysis.
Results obtained are often semi-quantitative by evaluating peak areas of compounds. Quantification of known compounds is also possible by performing a calibration curve using various concentrations of standards.
Access and Operation
Internal (unimelb) users: Training and self-operation is the preferred option. Request via iLab Training Request.
External users: Fee-for-service is the preferred option. Submit Chem Node Analysis Requests via iLab Request Services.
Visit Chemistry Node Access and Operation for more details.
Available services
Fatty acids and their methyl esters (FAMEs).
Contact and Location
Dr Alex Duan (Platform Manager) | Dr Yukie O'Bryan (Technical specialist)
School of Chemistry, Building 154, The University of Melbourne, Victoria 3010