GC-MS

Source of the photo: 
http://www.thermo.com/com/cda/products/image_popup/0,2772,10122277-Next-0-1,00.html
Author of the description: 
Fenyvesi Éva

Gas-Chromathography combined with Mass Spectrometry, gives both quantitative and qualitative information on the sample. The components separated by gas chromatography get into the mass spectrometer and are identified by comparison of their characteristic spectra to the spectral library.