Online System Trap Gas Chromatography FID Coupled to Mass Spectroscopy

Chromatotec (France) has increased its expertise in gas analysis and its field of analysers by developing a new GC/MS analyser for continuous VOC surveillance in the atmosphere.

This system uses the same trap, thermo-desorption and separation technologies as current GCs analysers. However, a Quadrupole is used in addition to the FID. The FID quantifies and identifies according to the retention time, whereas, the mass spectroscopy analyser measures the mass of analysed ions. The combination of these two detectors has resulted in an improvement in gas analysis expertise.

This system is designed for industrial application. The instrument may be inserted in a 19’’ rack and can be controlled remotely from another computer. It will now be possible to analyse a new range of compounds with this system. A demonstration instrument is currently running in Chromatotec's laboratory analysing VOC in the atmosphere. For this arrangement, a calibration system is used along with a zero air and a hydrogen generator. Possible applications include monitoring of VOCs (BTEX, phenol, etc), PAH (benzo(a) pyrene), chloride compounds (chlorobenzene and PCB), dioxin, and leak detection in clean air room.